21120291072

素因数分解:

$2^8\times 3^2\times {\mathrm{31}}^1\times {\mathrm{295703}}^1$

素因数の和:295756

約数の個数: 108

約数和(自身を含む): 62859573504

約数和(自身を除く): 41739282432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 93, 96, 124, 128, 144, 186, 192, 248, 256, 279, 288, 372, 384, 496, 558, 576, 744, 768, 992, 1116, 1152, 1488, 1984, 2232, 2304, 2976, 3968, 4464, 5952, 7936, 8928, 11904, 17856, 23808, 35712, 71424, 295703, 591406, 887109, 1182812, 1774218, 2365624, 2661327, 3548436, 4731248, 5322654, 7096872, 9166793, 9462496, 10645308, 14193744, 18333586, 18924992, 21290616, 27500379, 28387488, 36667172, 37849984, 42581232, 55000758, 56774976, 73334344, 75699968, 82501137, 85162464, 110001516, 113549952, 146668688, 165002274, 170324928, 220003032, 227099904, 293337376, 330004548, 340649856, 440006064, 586674752, 660009096, 681299712, 880012128, 1173349504, 1320018192, 1760024256, 2346699008, 2640036384, 3520048512, 5280072768, 7040097024, 10560145536, 21120291072]

約数ペア:

[(1, 21120291072), (2, 10560145536), (3, 7040097024), (4, 5280072768), (6, 3520048512), (8, 2640036384), (9, 2346699008), (12, 1760024256), (16, 1320018192), (18, 1173349504), (24, 880012128), (31, 681299712), (32, 660009096), (36, 586674752), (48, 440006064), (62, 340649856), (64, 330004548), (72, 293337376), (93, 227099904), (96, 220003032), (124, 170324928), (128, 165002274), (144, 146668688), (186, 113549952), (192, 110001516), (248, 85162464), (256, 82501137), (279, 75699968), (288, 73334344), (372, 56774976), (384, 55000758), (496, 42581232), (558, 37849984), (576, 36667172), (744, 28387488), (768, 27500379), (992, 21290616), (1116, 18924992), (1152, 18333586), (1488, 14193744), (1984, 10645308), (2232, 9462496), (2304, 9166793), (2976, 7096872), (3968, 5322654), (4464, 4731248), (5952, 3548436), (7936, 2661327), (8928, 2365624), (11904, 1774218), (17856, 1182812), (23808, 887109), (35712, 591406), (71424, 295703)]