21413540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{62981}}^1$

素因数の和:63007

約数の個数: 24

約数和(自身を含む): 47614392

約数和(自身を除く): 26200852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 62981, 125962, 251924, 314905, 629810, 1070677, 1259620, 2141354, 4282708, 5353385, 10706770, 21413540]

約数ペア:

[(1, 21413540), (2, 10706770), (4, 5353385), (5, 4282708), (10, 2141354), (17, 1259620), (20, 1070677), (34, 629810), (68, 314905), (85, 251924), (170, 125962), (340, 62981)]