18701241

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 28925568

約数和(自身を除く): 10224327

約数列:

[1, 3, 13, 17, 39, 51, 67, 201, 221, 421, 663, 871, 1139, 1263, 2613, 3417, 5473, 7157, 14807, 16419, 21471, 28207, 44421, 84621, 93041, 279123, 366691, 479519, 1100073, 1438557, 6233747, 18701241]

約数ペア:

[(1, 18701241), (3, 6233747), (13, 1438557), (17, 1100073), (39, 479519), (51, 366691), (67, 279123), (201, 93041), (221, 84621), (421, 44421), (663, 28207), (871, 21471), (1139, 16419), (1263, 14807), (2613, 7157), (3417, 5473)]