201874995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640873}}^1$

素因数の和:640891

約数の個数: 24

約数和(自身を含む): 399905376

約数和(自身を除く): 198030381

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640873, 1922619, 3204365, 4486111, 5767857, 9613095, 13458333, 22430555, 28839285, 40374999, 67291665, 201874995]

約数ペア:

[(1, 201874995), (3, 67291665), (5, 40374999), (7, 28839285), (9, 22430555), (15, 13458333), (21, 9613095), (35, 5767857), (45, 4486111), (63, 3204365), (105, 1922619), (315, 640873)]