21578024

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207481}}^1$

素因数の和:207500

約数の個数: 16

約数和(自身を含む): 43571220

約数和(自身を除く): 21993196

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207481, 414962, 829924, 1659848, 2697253, 5394506, 10789012, 21578024]

約数ペア:

[(1, 21578024), (2, 10789012), (4, 5394506), (8, 2697253), (13, 1659848), (26, 829924), (52, 414962), (104, 207481)]