20741530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7177}}^1$

素因数の和:7218

約数の個数: 24

約数和(自身を含む): 39665628

約数和(自身を除く): 18924098

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7177, 14354, 35885, 71770, 122009, 244018, 610045, 1220090, 2074153, 4148306, 10370765, 20741530]

約数ペア:

[(1, 20741530), (2, 10370765), (5, 4148306), (10, 2074153), (17, 1220090), (34, 610045), (85, 244018), (170, 122009), (289, 71770), (578, 35885), (1445, 14354), (2890, 7177)]