21153288

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 57456000

約数和(自身を除く): 36302712

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 151, 156, 302, 312, 449, 453, 604, 898, 906, 1208, 1347, 1796, 1812, 1963, 2694, 3592, 3624, 3926, 5388, 5837, 5889, 7852, 10776, 11674, 11778, 15704, 17511, 23348, 23556, 35022, 46696, 47112, 67799, 70044, 135598, 140088, 203397, 271196, 406794, 542392, 813588, 881387, 1627176, 1762774, 2644161, 3525548, 5288322, 7051096, 10576644, 21153288]

約数ペア:

[(1, 21153288), (2, 10576644), (3, 7051096), (4, 5288322), (6, 3525548), (8, 2644161), (12, 1762774), (13, 1627176), (24, 881387), (26, 813588), (39, 542392), (52, 406794), (78, 271196), (104, 203397), (151, 140088), (156, 135598), (302, 70044), (312, 67799), (449, 47112), (453, 46696), (604, 35022), (898, 23556), (906, 23348), (1208, 17511), (1347, 15704), (1796, 11778), (1812, 11674), (1963, 10776), (2694, 7852), (3592, 5889), (3624, 5837), (3926, 5388)]