21206510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163127}}^1$

素因数の和:163147

約数の個数: 16

約数和(自身を含む): 41108256

約数和(自身を除く): 19901746

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163127, 326254, 815635, 1631270, 2120651, 4241302, 10603255, 21206510]

約数ペア:

[(1, 21206510), (2, 10603255), (5, 4241302), (10, 2120651), (13, 1631270), (26, 815635), (65, 326254), (130, 163127)]