21310650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 62674560

約数和(自身を除く): 41363910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 29, 30, 45, 46, 50, 58, 69, 71, 75, 87, 90, 115, 138, 142, 145, 150, 174, 207, 213, 225, 230, 261, 290, 345, 355, 414, 426, 435, 450, 522, 575, 639, 667, 690, 710, 725, 870, 1035, 1065, 1150, 1278, 1305, 1334, 1450, 1633, 1725, 1775, 2001, 2059, 2070, 2130, 2175, 2610, 3195, 3266, 3335, 3450, 3550, 4002, 4118, 4350, 4899, 5175, 5325, 6003, 6177, 6390, 6525, 6670, 8165, 9798, 10005, 10295, 10350, 10650, 12006, 12354, 13050, 14697, 15975, 16330, 16675, 18531, 20010, 20590, 24495, 29394, 30015, 30885, 31950, 33350, 37062, 40825, 47357, 48990, 50025, 51475, 60030, 61770, 73485, 81650, 92655, 94714, 100050, 102950, 122475, 142071, 146970, 150075, 154425, 185310, 236785, 244950, 284142, 300150, 308850, 367425, 426213, 463275, 473570, 710355, 734850, 852426, 926550, 1183925, 1420710, 2131065, 2367850, 3551775, 4262130, 7103550, 10655325, 21310650]

約数ペア:

[(1, 21310650), (2, 10655325), (3, 7103550), (5, 4262130), (6, 3551775), (9, 2367850), (10, 2131065), (15, 1420710), (18, 1183925), (23, 926550), (25, 852426), (29, 734850), (30, 710355), (45, 473570), (46, 463275), (50, 426213), (58, 367425), (69, 308850), (71, 300150), (75, 284142), (87, 244950), (90, 236785), (115, 185310), (138, 154425), (142, 150075), (145, 146970), (150, 142071), (174, 122475), (207, 102950), (213, 100050), (225, 94714), (230, 92655), (261, 81650), (290, 73485), (345, 61770), (355, 60030), (414, 51475), (426, 50025), (435, 48990), (450, 47357), (522, 40825), (575, 37062), (639, 33350), (667, 31950), (690, 30885), (710, 30015), (725, 29394), (870, 24495), (1035, 20590), (1065, 20010), (1150, 18531), (1278, 16675), (1305, 16330), (1334, 15975), (1450, 14697), (1633, 13050), (1725, 12354), (1775, 12006), (2001, 10650), (2059, 10350), (2070, 10295), (2130, 10005), (2175, 9798), (2610, 8165), (3195, 6670), (3266, 6525), (3335, 6390), (3450, 6177), (3550, 6003), (4002, 5325), (4118, 5175), (4350, 4899)]