21158744

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155579}}^1$

素因数の和:155602

約数の個数: 16

約数和(自身を含む): 42006600

約数和(自身を除く): 20847856

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155579, 311158, 622316, 1244632, 2644843, 5289686, 10579372, 21158744]

約数ペア:

[(1, 21158744), (2, 10579372), (4, 5289686), (8, 2644843), (17, 1244632), (34, 622316), (68, 311158), (136, 155579)]