21721534

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{937}}^1$

素因数の和:1179

約数の個数: 16

約数和(自身を含む): 33295248

約数和(自身を除く): 11573714

約数列:

[1, 2, 67, 134, 173, 346, 937, 1874, 11591, 23182, 62779, 125558, 162101, 324202, 10860767, 21721534]

約数ペア:

[(1, 21721534), (2, 10860767), (67, 324202), (134, 162101), (173, 125558), (346, 62779), (937, 23182), (1874, 11591)]