20839095

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 16900425

約数列:

[1, 3, 5, 9, 15, 45, 47, 59, 141, 167, 177, 235, 295, 423, 501, 531, 705, 835, 885, 1503, 2115, 2505, 2655, 2773, 7515, 7849, 8319, 9853, 13865, 23547, 24957, 29559, 39245, 41595, 49265, 70641, 88677, 117735, 124785, 147795, 353205, 443385, 463091, 1389273, 2315455, 4167819, 6946365, 20839095]

約数ペア:

[(1, 20839095), (3, 6946365), (5, 4167819), (9, 2315455), (15, 1389273), (45, 463091), (47, 443385), (59, 353205), (141, 147795), (167, 124785), (177, 117735), (235, 88677), (295, 70641), (423, 49265), (501, 41595), (531, 39245), (705, 29559), (835, 24957), (885, 23547), (1503, 13865), (2115, 9853), (2505, 8319), (2655, 7849), (2773, 7515)]