20388885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4309

約数の個数: 32

約数和(自身を含む): 36823680

約数和(自身を除く): 16434795

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4261, 4785, 12783, 21305, 46871, 63915, 123569, 140613, 234355, 370707, 617845, 703065, 1359259, 1853535, 4077777, 6796295, 20388885]

約数ペア:

[(1, 20388885), (3, 6796295), (5, 4077777), (11, 1853535), (15, 1359259), (29, 703065), (33, 617845), (55, 370707), (87, 234355), (145, 140613), (165, 123569), (319, 63915), (435, 46871), (957, 21305), (1595, 12783), (4261, 4785)]