20493104

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2251}}^1$

素因数の和:2828

約数の個数: 20

約数和(自身を含む): 39792840

約数和(自身を除く): 19299736

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2251, 2276, 4502, 4552, 9004, 9104, 18008, 36016, 1280819, 2561638, 5123276, 10246552, 20493104]

約数ペア:

[(1, 20493104), (2, 10246552), (4, 5123276), (8, 2561638), (16, 1280819), (569, 36016), (1138, 18008), (2251, 9104), (2276, 9004), (4502, 4552)]