21272360

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2971}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 48146400

約数和(自身を除く): 26874040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2971, 3580, 5942, 7160, 11884, 14855, 23768, 29710, 59420, 118840, 531809, 1063618, 2127236, 2659045, 4254472, 5318090, 10636180, 21272360]

約数ペア:

[(1, 21272360), (2, 10636180), (4, 5318090), (5, 4254472), (8, 2659045), (10, 2127236), (20, 1063618), (40, 531809), (179, 118840), (358, 59420), (716, 29710), (895, 23768), (1432, 14855), (1790, 11884), (2971, 7160), (3580, 5942)]