21408856

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5237}}^1$

素因数の和:5323

約数の個数: 32

約数和(自身を含む): 46513440

約数和(自身を除く): 25104584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5237, 10474, 20948, 36659, 41896, 73318, 146636, 293272, 382301, 764602, 1529204, 2676107, 3058408, 5352214, 10704428, 21408856]

約数ペア:

[(1, 21408856), (2, 10704428), (4, 5352214), (7, 3058408), (8, 2676107), (14, 1529204), (28, 764602), (56, 382301), (73, 293272), (146, 146636), (292, 73318), (511, 41896), (584, 36659), (1022, 20948), (2044, 10474), (4088, 5237)]