20395845

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15629}}^1$

素因数の和:15669

約数の個数: 24

約数和(自身を含む): 36574200

約数和(自身を除く): 16178355

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15629, 46887, 78145, 140661, 234435, 453241, 703305, 1359723, 2266205, 4079169, 6798615, 20395845]

約数ペア:

[(1, 20395845), (3, 6798615), (5, 4079169), (9, 2266205), (15, 1359723), (29, 703305), (45, 453241), (87, 234435), (145, 140661), (261, 78145), (435, 46887), (1305, 15629)]