17940915

素因数分解:

$3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{947}}^1$

素因数の和:1379

約数の個数: 24

約数和(自身を含む): 31204368

約数和(自身を除く): 13263453

約数列:

[1, 3, 5, 9, 15, 45, 421, 947, 1263, 2105, 2841, 3789, 4735, 6315, 8523, 14205, 18945, 42615, 398687, 1196061, 1993435, 3588183, 5980305, 17940915]

約数ペア:

[(1, 17940915), (3, 5980305), (5, 3588183), (9, 1993435), (15, 1196061), (45, 398687), (421, 42615), (947, 18945), (1263, 14205), (2105, 8523), (2841, 6315), (3789, 4735)]