21412825

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3307}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 31174592

約数和(自身を除く): 9761767

約数列:

[1, 5, 7, 25, 35, 37, 175, 185, 259, 925, 1295, 3307, 6475, 16535, 23149, 82675, 115745, 122359, 578725, 611795, 856513, 3058975, 4282565, 21412825]

約数ペア:

[(1, 21412825), (5, 4282565), (7, 3058975), (25, 856513), (35, 611795), (37, 578725), (175, 122359), (185, 115745), (259, 82675), (925, 23149), (1295, 16535), (3307, 6475)]