21725553

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 30659200

約数和(自身を除く): 8933647

約数列:

[1, 3, 29, 79, 87, 109, 237, 327, 841, 2291, 2523, 3161, 6873, 8611, 9483, 25833, 66439, 91669, 199317, 249719, 275007, 749157, 7241851, 21725553]

約数ペア:

[(1, 21725553), (3, 7241851), (29, 749157), (79, 275007), (87, 249719), (109, 199317), (237, 91669), (327, 66439), (841, 25833), (2291, 9483), (2523, 8611), (3161, 6873)]