18984904

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{21001}}^1$

素因数の和:21120

約数の個数: 16

約数和(自身を含む): 35913420

約数和(自身を除く): 16928516

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 21001, 42002, 84004, 168008, 2373113, 4746226, 9492452, 18984904]

約数ペア:

[(1, 18984904), (2, 9492452), (4, 4746226), (8, 2373113), (113, 168008), (226, 84004), (452, 42002), (904, 21001)]