20993596

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{829}}^1$

素因数の和:1333

約数の個数: 24

約数和(自身を含む): 39693920

約数和(自身を除く): 18700324

約数列:

[1, 2, 4, 13, 26, 52, 487, 829, 974, 1658, 1948, 3316, 6331, 10777, 12662, 21554, 25324, 43108, 403723, 807446, 1614892, 5248399, 10496798, 20993596]

約数ペア:

[(1, 20993596), (2, 10496798), (4, 5248399), (13, 1614892), (26, 807446), (52, 403723), (487, 43108), (829, 25324), (974, 21554), (1658, 12662), (1948, 10777), (3316, 6331)]