21460540

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14699}}^1$

素因数の和:14781

約数の個数: 24

約数和(自身を含む): 45687600

約数和(自身を除く): 24227060

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14699, 29398, 58796, 73495, 146990, 293980, 1073027, 2146054, 4292108, 5365135, 10730270, 21460540]

約数ペア:

[(1, 21460540), (2, 10730270), (4, 5365135), (5, 4292108), (10, 2146054), (20, 1073027), (73, 293980), (146, 146990), (292, 73495), (365, 58796), (730, 29398), (1460, 14699)]