21999620

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3583}}^1$

素因数の和:3899

約数の個数: 24

約数和(自身を含む): 46362624

約数和(自身を除く): 24363004

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 3583, 6140, 7166, 14332, 17915, 35830, 71660, 1099981, 2199962, 4399924, 5499905, 10999810, 21999620]

約数ペア:

[(1, 21999620), (2, 10999810), (4, 5499905), (5, 4399924), (10, 2199962), (20, 1099981), (307, 71660), (614, 35830), (1228, 17915), (1535, 14332), (3070, 7166), (3583, 6140)]