30918951

素因数分解:

$3^2\times 7^2\times {\mathrm{70111}}^1$

素因数の和:70131

約数の個数: 18

約数和(自身を含む): 51952992

約数和(自身を除く): 21034041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 70111, 210333, 490777, 630999, 1472331, 3435439, 4416993, 10306317, 30918951]

約数ペア:

[(1, 30918951), (3, 10306317), (7, 4416993), (9, 3435439), (21, 1472331), (49, 630999), (63, 490777), (147, 210333), (441, 70111)]