201893895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640933}}^1$

素因数の和:640951

約数の個数: 24

約数和(自身を含む): 399942816

約数和(自身を除く): 198048921

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640933, 1922799, 3204665, 4486531, 5768397, 9613995, 13459593, 22432655, 28841985, 40378779, 67297965, 201893895]

約数ペア:

[(1, 201893895), (3, 67297965), (5, 40378779), (7, 28841985), (9, 22432655), (15, 13459593), (21, 9613995), (35, 5768397), (45, 4486531), (63, 3204665), (105, 1922799), (315, 640933)]