20838645

素因数分解:

$3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{811}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 36228192

約数和(自身を除く): 15389547

約数列:

[1, 3, 5, 9, 15, 45, 571, 811, 1713, 2433, 2855, 4055, 5139, 7299, 8565, 12165, 25695, 36495, 463081, 1389243, 2315405, 4167729, 6946215, 20838645]

約数ペア:

[(1, 20838645), (3, 6946215), (5, 4167729), (9, 2315405), (15, 1389243), (45, 463081), (571, 36495), (811, 25695), (1713, 12165), (2433, 8565), (2855, 7299), (4055, 5139)]