21569295

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2143}}^1$

素因数の和:2223

約数の個数: 32

約数和(自身を含む): 38283264

約数和(自身を除く): 16713969

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 671, 915, 2013, 2143, 3355, 6429, 10065, 10715, 23573, 32145, 70719, 117865, 130723, 353595, 392169, 653615, 1437953, 1960845, 4313859, 7189765, 21569295]

約数ペア:

[(1, 21569295), (3, 7189765), (5, 4313859), (11, 1960845), (15, 1437953), (33, 653615), (55, 392169), (61, 353595), (165, 130723), (183, 117865), (305, 70719), (671, 32145), (915, 23573), (2013, 10715), (2143, 10065), (3355, 6429)]