21408238

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2797}}^1$

素因数の和:2931

約数の個数: 16

約数和(自身を含む): 33240240

約数和(自身を除く): 11832002

約数列:

[1, 2, 43, 86, 89, 178, 2797, 3827, 5594, 7654, 120271, 240542, 248933, 497866, 10704119, 21408238]

約数ペア:

[(1, 21408238), (2, 10704119), (43, 497866), (86, 248933), (89, 240542), (178, 120271), (2797, 7654), (3827, 5594)]