19933744

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40189}}^1$

素因数の和:40228

約数の個数: 20

約数和(自身を含む): 39868480

約数和(自身を除く): 19934736

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40189, 80378, 160756, 321512, 643024, 1245859, 2491718, 4983436, 9966872, 19933744]

約数ペア:

[(1, 19933744), (2, 9966872), (4, 4983436), (8, 2491718), (16, 1245859), (31, 643024), (62, 321512), (124, 160756), (248, 80378), (496, 40189)]