21867480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 56756520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 138, 139, 152, 171, 180, 184, 190, 207, 228, 230, 276, 278, 285, 342, 345, 360, 380, 414, 417, 437, 456, 460, 552, 556, 570, 684, 690, 695, 760, 828, 834, 855, 874, 920, 1035, 1112, 1140, 1251, 1311, 1368, 1380, 1390, 1656, 1668, 1710, 1748, 2070, 2085, 2185, 2280, 2502, 2622, 2641, 2760, 2780, 3197, 3336, 3420, 3496, 3933, 4140, 4170, 4370, 5004, 5244, 5282, 5560, 6255, 6394, 6555, 6840, 7866, 7923, 8280, 8340, 8740, 9591, 10008, 10488, 10564, 12510, 12788, 13110, 13205, 15732, 15846, 15985, 16680, 17480, 19182, 19665, 21128, 23769, 25020, 25576, 26220, 26410, 28773, 31464, 31692, 31970, 38364, 39330, 39615, 47538, 47955, 50040, 52440, 52820, 57546, 60743, 63384, 63940, 76728, 78660, 79230, 95076, 95910, 105640, 115092, 118845, 121486, 127880, 143865, 157320, 158460, 182229, 190152, 191820, 230184, 237690, 242972, 287730, 303715, 316920, 364458, 383640, 475380, 485944, 546687, 575460, 607430, 728916, 911145, 950760, 1093374, 1150920, 1214860, 1457832, 1822290, 2186748, 2429720, 2733435, 3644580, 4373496, 5466870, 7289160, 10933740, 21867480]

約数ペア:

[(1, 21867480), (2, 10933740), (3, 7289160), (4, 5466870), (5, 4373496), (6, 3644580), (8, 2733435), (9, 2429720), (10, 2186748), (12, 1822290), (15, 1457832), (18, 1214860), (19, 1150920), (20, 1093374), (23, 950760), (24, 911145), (30, 728916), (36, 607430), (38, 575460), (40, 546687), (45, 485944), (46, 475380), (57, 383640), (60, 364458), (69, 316920), (72, 303715), (76, 287730), (90, 242972), (92, 237690), (95, 230184), (114, 191820), (115, 190152), (120, 182229), (138, 158460), (139, 157320), (152, 143865), (171, 127880), (180, 121486), (184, 118845), (190, 115092), (207, 105640), (228, 95910), (230, 95076), (276, 79230), (278, 78660), (285, 76728), (342, 63940), (345, 63384), (360, 60743), (380, 57546), (414, 52820), (417, 52440), (437, 50040), (456, 47955), (460, 47538), (552, 39615), (556, 39330), (570, 38364), (684, 31970), (690, 31692), (695, 31464), (760, 28773), (828, 26410), (834, 26220), (855, 25576), (874, 25020), (920, 23769), (1035, 21128), (1112, 19665), (1140, 19182), (1251, 17480), (1311, 16680), (1368, 15985), (1380, 15846), (1390, 15732), (1656, 13205), (1668, 13110), (1710, 12788), (1748, 12510), (2070, 10564), (2085, 10488), (2185, 10008), (2280, 9591), (2502, 8740), (2622, 8340), (2641, 8280), (2760, 7923), (2780, 7866), (3197, 6840), (3336, 6555), (3420, 6394), (3496, 6255), (3933, 5560), (4140, 5282), (4170, 5244), (4370, 5004)]