21069300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 71106560

約数和(自身を除く): 50037260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 79, 84, 100, 105, 127, 140, 150, 158, 175, 210, 237, 254, 300, 316, 350, 381, 395, 420, 474, 508, 525, 553, 635, 700, 762, 790, 889, 948, 1050, 1106, 1185, 1270, 1524, 1580, 1659, 1778, 1905, 1975, 2100, 2212, 2370, 2540, 2667, 2765, 3175, 3318, 3556, 3810, 3950, 4445, 4740, 5334, 5530, 5925, 6350, 6636, 7620, 7900, 8295, 8890, 9525, 10033, 10668, 11060, 11850, 12700, 13335, 13825, 16590, 17780, 19050, 20066, 22225, 23700, 26670, 27650, 30099, 33180, 38100, 40132, 41475, 44450, 50165, 53340, 55300, 60198, 66675, 70231, 82950, 88900, 100330, 120396, 133350, 140462, 150495, 165900, 200660, 210693, 250825, 266700, 280924, 300990, 351155, 421386, 501650, 601980, 702310, 752475, 842772, 1003300, 1053465, 1404620, 1504950, 1755775, 2106930, 3009900, 3511550, 4213860, 5267325, 7023100, 10534650, 21069300]

約数ペア:

[(1, 21069300), (2, 10534650), (3, 7023100), (4, 5267325), (5, 4213860), (6, 3511550), (7, 3009900), (10, 2106930), (12, 1755775), (14, 1504950), (15, 1404620), (20, 1053465), (21, 1003300), (25, 842772), (28, 752475), (30, 702310), (35, 601980), (42, 501650), (50, 421386), (60, 351155), (70, 300990), (75, 280924), (79, 266700), (84, 250825), (100, 210693), (105, 200660), (127, 165900), (140, 150495), (150, 140462), (158, 133350), (175, 120396), (210, 100330), (237, 88900), (254, 82950), (300, 70231), (316, 66675), (350, 60198), (381, 55300), (395, 53340), (420, 50165), (474, 44450), (508, 41475), (525, 40132), (553, 38100), (635, 33180), (700, 30099), (762, 27650), (790, 26670), (889, 23700), (948, 22225), (1050, 20066), (1106, 19050), (1185, 17780), (1270, 16590), (1524, 13825), (1580, 13335), (1659, 12700), (1778, 11850), (1905, 11060), (1975, 10668), (2100, 10033), (2212, 9525), (2370, 8890), (2540, 8295), (2667, 7900), (2765, 7620), (3175, 6636), (3318, 6350), (3556, 5925), (3810, 5530), (3950, 5334), (4445, 4740)]