21247728

素因数分解:

$2^4\times 3^1\times {\mathrm{599}}^1\times {\mathrm{739}}^1$

素因数の和:1349

約数の個数: 40

約数和(自身を含む): 55056000

約数和(自身を除く): 33808272

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 599, 739, 1198, 1478, 1797, 2217, 2396, 2956, 3594, 4434, 4792, 5912, 7188, 8868, 9584, 11824, 14376, 17736, 28752, 35472, 442661, 885322, 1327983, 1770644, 2655966, 3541288, 5311932, 7082576, 10623864, 21247728]

約数ペア:

[(1, 21247728), (2, 10623864), (3, 7082576), (4, 5311932), (6, 3541288), (8, 2655966), (12, 1770644), (16, 1327983), (24, 885322), (48, 442661), (599, 35472), (739, 28752), (1198, 17736), (1478, 14376), (1797, 11824), (2217, 9584), (2396, 8868), (2956, 7188), (3594, 5912), (4434, 4792)]