18943641

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 28533960

約数和(自身を除く): 9590319

約数列:

[1, 3, 9, 29, 87, 181, 261, 401, 543, 1203, 1629, 3609, 5249, 11629, 15747, 34887, 47241, 72581, 104661, 217743, 653229, 2104849, 6314547, 18943641]

約数ペア:

[(1, 18943641), (3, 6314547), (9, 2104849), (29, 653229), (87, 217743), (181, 104661), (261, 72581), (401, 47241), (543, 34887), (1203, 15747), (1629, 11629), (3609, 5249)]