20421144

素因数分解:

$2^3\times 3^2\times {\mathrm{181}}^1\times {\mathrm{1567}}^1$

素因数の和:1760

約数の個数: 48

約数和(自身を含む): 55648320

約数和(自身を除く): 35227176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 181, 362, 543, 724, 1086, 1448, 1567, 1629, 2172, 3134, 3258, 4344, 4701, 6268, 6516, 9402, 12536, 13032, 14103, 18804, 28206, 37608, 56412, 112824, 283627, 567254, 850881, 1134508, 1701762, 2269016, 2552643, 3403524, 5105286, 6807048, 10210572, 20421144]

約数ペア:

[(1, 20421144), (2, 10210572), (3, 6807048), (4, 5105286), (6, 3403524), (8, 2552643), (9, 2269016), (12, 1701762), (18, 1134508), (24, 850881), (36, 567254), (72, 283627), (181, 112824), (362, 56412), (543, 37608), (724, 28206), (1086, 18804), (1448, 14103), (1567, 13032), (1629, 12536), (2172, 9402), (3134, 6516), (3258, 6268), (4344, 4701)]