201897045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640943}}^1$

素因数の和:640961

約数の個数: 24

約数和(自身を含む): 399949056

約数和(自身を除く): 198052011

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640943, 1922829, 3204715, 4486601, 5768487, 9614145, 13459803, 22433005, 28842435, 40379409, 67299015, 201897045]

約数ペア:

[(1, 201897045), (3, 67299015), (5, 40379409), (7, 28842435), (9, 22433005), (15, 13459803), (21, 9614145), (35, 5768487), (45, 4486601), (63, 3204715), (105, 1922829), (315, 640943)]