21352664

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 41342400

約数和(自身を除く): 19989736

約数列:

[1, 2, 4, 8, 47, 94, 109, 188, 218, 376, 436, 521, 872, 1042, 2084, 4168, 5123, 10246, 20492, 24487, 40984, 48974, 56789, 97948, 113578, 195896, 227156, 454312, 2669083, 5338166, 10676332, 21352664]

約数ペア:

[(1, 21352664), (2, 10676332), (4, 5338166), (8, 2669083), (47, 454312), (94, 227156), (109, 195896), (188, 113578), (218, 97948), (376, 56789), (436, 48974), (521, 40984), (872, 24487), (1042, 20492), (2084, 10246), (4168, 5123)]