20985864

素因数分解:

$2^3\times 3^1\times {\mathrm{181}}^1\times {\mathrm{4831}}^1$

素因数の和:5021

約数の個数: 32

約数和(自身を含む): 52765440

約数和(自身を除く): 31779576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 181, 362, 543, 724, 1086, 1448, 2172, 4344, 4831, 9662, 14493, 19324, 28986, 38648, 57972, 115944, 874411, 1748822, 2623233, 3497644, 5246466, 6995288, 10492932, 20985864]

約数ペア:

[(1, 20985864), (2, 10492932), (3, 6995288), (4, 5246466), (6, 3497644), (8, 2623233), (12, 1748822), (24, 874411), (181, 115944), (362, 57972), (543, 38648), (724, 28986), (1086, 19324), (1448, 14493), (2172, 9662), (4344, 4831)]