20564664

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{19927}}^1$

素因数の和:19979

約数の個数: 32

約数和(自身を含む): 52609920

約数和(自身を除く): 32045256

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 19927, 39854, 59781, 79708, 119562, 159416, 239124, 478248, 856861, 1713722, 2570583, 3427444, 5141166, 6854888, 10282332, 20564664]

約数ペア:

[(1, 20564664), (2, 10282332), (3, 6854888), (4, 5141166), (6, 3427444), (8, 2570583), (12, 1713722), (24, 856861), (43, 478248), (86, 239124), (129, 159416), (172, 119562), (258, 79708), (344, 59781), (516, 39854), (1032, 19927)]