20391874

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{1301}}^1$

素因数の和:1781

約数の個数: 16

約数和(自身を含む): 32482296

約数和(自身を除く): 12090422

約数列:

[1, 2, 17, 34, 461, 922, 1301, 2602, 7837, 15674, 22117, 44234, 599761, 1199522, 10195937, 20391874]

約数ペア:

[(1, 20391874), (2, 10195937), (17, 1199522), (34, 599761), (461, 44234), (922, 22117), (1301, 15674), (2602, 7837)]