21275241

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1447}}^1$

素因数の和:1505

約数の個数: 24

約数和(自身を含む): 31798080

約数和(自身を除く): 10522839

約数列:

[1, 3, 13, 29, 39, 87, 169, 377, 507, 1131, 1447, 4341, 4901, 14703, 18811, 41963, 56433, 125889, 244543, 545519, 733629, 1636557, 7091747, 21275241]

約数ペア:

[(1, 21275241), (3, 7091747), (13, 1636557), (29, 733629), (39, 545519), (87, 244543), (169, 125889), (377, 56433), (507, 41963), (1131, 18811), (1447, 14703), (4341, 4901)]