21802620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 75995136

約数和(自身を除く): 54192516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 37, 42, 46, 60, 61, 69, 70, 74, 84, 92, 105, 111, 115, 122, 138, 140, 148, 161, 183, 185, 210, 222, 230, 244, 259, 276, 305, 322, 345, 366, 370, 420, 427, 444, 460, 483, 518, 555, 610, 644, 690, 732, 740, 777, 805, 851, 854, 915, 966, 1036, 1110, 1220, 1281, 1295, 1380, 1403, 1554, 1610, 1702, 1708, 1830, 1932, 2135, 2220, 2257, 2415, 2553, 2562, 2590, 2806, 3108, 3220, 3404, 3660, 3885, 4209, 4255, 4270, 4514, 4830, 5106, 5124, 5180, 5612, 5957, 6405, 6771, 7015, 7770, 8418, 8510, 8540, 9028, 9660, 9821, 10212, 11285, 11914, 12765, 12810, 13542, 14030, 15540, 15799, 16836, 17020, 17871, 19642, 21045, 22570, 23828, 25530, 25620, 27084, 28060, 29463, 29785, 31598, 33855, 35742, 39284, 42090, 45140, 47397, 49105, 51060, 51911, 58926, 59570, 63196, 67710, 71484, 78995, 84180, 89355, 94794, 98210, 103822, 117852, 119140, 135420, 147315, 155733, 157990, 178710, 189588, 196420, 207644, 236985, 259555, 294630, 311466, 315980, 357420, 363377, 473970, 519110, 589260, 622932, 726754, 778665, 947940, 1038220, 1090131, 1453508, 1557330, 1816885, 2180262, 3114660, 3633770, 4360524, 5450655, 7267540, 10901310, 21802620]

約数ペア:

[(1, 21802620), (2, 10901310), (3, 7267540), (4, 5450655), (5, 4360524), (6, 3633770), (7, 3114660), (10, 2180262), (12, 1816885), (14, 1557330), (15, 1453508), (20, 1090131), (21, 1038220), (23, 947940), (28, 778665), (30, 726754), (35, 622932), (37, 589260), (42, 519110), (46, 473970), (60, 363377), (61, 357420), (69, 315980), (70, 311466), (74, 294630), (84, 259555), (92, 236985), (105, 207644), (111, 196420), (115, 189588), (122, 178710), (138, 157990), (140, 155733), (148, 147315), (161, 135420), (183, 119140), (185, 117852), (210, 103822), (222, 98210), (230, 94794), (244, 89355), (259, 84180), (276, 78995), (305, 71484), (322, 67710), (345, 63196), (366, 59570), (370, 58926), (420, 51911), (427, 51060), (444, 49105), (460, 47397), (483, 45140), (518, 42090), (555, 39284), (610, 35742), (644, 33855), (690, 31598), (732, 29785), (740, 29463), (777, 28060), (805, 27084), (851, 25620), (854, 25530), (915, 23828), (966, 22570), (1036, 21045), (1110, 19642), (1220, 17871), (1281, 17020), (1295, 16836), (1380, 15799), (1403, 15540), (1554, 14030), (1610, 13542), (1702, 12810), (1708, 12765), (1830, 11914), (1932, 11285), (2135, 10212), (2220, 9821), (2257, 9660), (2415, 9028), (2553, 8540), (2562, 8510), (2590, 8418), (2806, 7770), (3108, 7015), (3220, 6771), (3404, 6405), (3660, 5957), (3885, 5612), (4209, 5180), (4255, 5124), (4270, 5106), (4514, 4830)]