21515528

素因数分解:

$2^3\times {\mathrm{1319}}^1\times {\mathrm{2039}}^1$

素因数の和:3364

約数の個数: 16

約数和(自身を含む): 40392000

約数和(自身を除く): 18876472

約数列:

[1, 2, 4, 8, 1319, 2039, 2638, 4078, 5276, 8156, 10552, 16312, 2689441, 5378882, 10757764, 21515528]

約数ペア:

[(1, 21515528), (2, 10757764), (4, 5378882), (8, 2689441), (1319, 16312), (2039, 10552), (2638, 8156), (4078, 5276)]