21503640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48169320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 83, 85, 102, 120, 127, 136, 166, 170, 204, 249, 254, 255, 332, 340, 381, 408, 415, 498, 508, 510, 635, 664, 680, 762, 830, 996, 1016, 1020, 1245, 1270, 1411, 1524, 1660, 1905, 1992, 2040, 2159, 2490, 2540, 2822, 3048, 3320, 3810, 4233, 4318, 4980, 5080, 5644, 6477, 7055, 7620, 8466, 8636, 9960, 10541, 10795, 11288, 12954, 14110, 15240, 16932, 17272, 21082, 21165, 21590, 25908, 28220, 31623, 32385, 33864, 42164, 42330, 43180, 51816, 52705, 56440, 63246, 64770, 84328, 84660, 86360, 105410, 126492, 129540, 158115, 169320, 179197, 210820, 252984, 259080, 316230, 358394, 421640, 537591, 632460, 716788, 895985, 1075182, 1264920, 1433576, 1791970, 2150364, 2687955, 3583940, 4300728, 5375910, 7167880, 10751820, 21503640]

約数ペア:

[(1, 21503640), (2, 10751820), (3, 7167880), (4, 5375910), (5, 4300728), (6, 3583940), (8, 2687955), (10, 2150364), (12, 1791970), (15, 1433576), (17, 1264920), (20, 1075182), (24, 895985), (30, 716788), (34, 632460), (40, 537591), (51, 421640), (60, 358394), (68, 316230), (83, 259080), (85, 252984), (102, 210820), (120, 179197), (127, 169320), (136, 158115), (166, 129540), (170, 126492), (204, 105410), (249, 86360), (254, 84660), (255, 84328), (332, 64770), (340, 63246), (381, 56440), (408, 52705), (415, 51816), (498, 43180), (508, 42330), (510, 42164), (635, 33864), (664, 32385), (680, 31623), (762, 28220), (830, 25908), (996, 21590), (1016, 21165), (1020, 21082), (1245, 17272), (1270, 16932), (1411, 15240), (1524, 14110), (1660, 12954), (1905, 11288), (1992, 10795), (2040, 10541), (2159, 9960), (2490, 8636), (2540, 8466), (2822, 7620), (3048, 7055), (3320, 6477), (3810, 5644), (4233, 5080), (4318, 4980)]