21326680

素因数分解:

$2^3\times 5^1\times {\mathrm{533167}}^1$

素因数の和:533178

約数の個数: 16

約数和(自身を含む): 47985120

約数和(自身を除く): 26658440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 533167, 1066334, 2132668, 2665835, 4265336, 5331670, 10663340, 21326680]

約数ペア:

[(1, 21326680), (2, 10663340), (4, 5331670), (5, 4265336), (8, 2665835), (10, 2132668), (20, 1066334), (40, 533167)]