21620804985

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1523}}^1\times {\mathrm{8089}}^1$

素因数の和:9639

約数の個数: 64

約数和(自身を含む): 41425977600

約数和(自身を除く): 19805172615

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1523, 1755, 4569, 7615, 8089, 13707, 19799, 22845, 24267, 40445, 41121, 59397, 68535, 72801, 98995, 105157, 121335, 178191, 205605, 218403, 296985, 315471, 364005, 525785, 534573, 890955, 946413, 1092015, 1577355, 2672865, 2839239, 4732065, 12319547, 14196195, 36958641, 61597735, 110875923, 160154111, 184793205, 332627769, 480462333, 554379615, 800770555, 1441386999, 1663138845, 2402311665, 4324160997, 7206934995, 21620804985]

約数ペア:

[(1, 21620804985), (3, 7206934995), (5, 4324160997), (9, 2402311665), (13, 1663138845), (15, 1441386999), (27, 800770555), (39, 554379615), (45, 480462333), (65, 332627769), (117, 184793205), (135, 160154111), (195, 110875923), (351, 61597735), (585, 36958641), (1523, 14196195), (1755, 12319547), (4569, 4732065), (7615, 2839239), (8089, 2672865), (13707, 1577355), (19799, 1092015), (22845, 946413), (24267, 890955), (40445, 534573), (41121, 525785), (59397, 364005), (68535, 315471), (72801, 296985), (98995, 218403), (105157, 205605), (121335, 178191)]