21714628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1021}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 41063960

約数和(自身を除く): 19349332

約数列:

[1, 2, 4, 13, 26, 52, 409, 818, 1021, 1636, 2042, 4084, 5317, 10634, 13273, 21268, 26546, 53092, 417589, 835178, 1670356, 5428657, 10857314, 21714628]

約数ペア:

[(1, 21714628), (2, 10857314), (4, 5428657), (13, 1670356), (26, 835178), (52, 417589), (409, 53092), (818, 26546), (1021, 21268), (1636, 13273), (2042, 10634), (4084, 5317)]