20895850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9719}}^1$

素因数の和:9774

約数の個数: 24

約数和(自身を含む): 39774240

約数和(自身を除く): 18878390

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9719, 19438, 48595, 97190, 242975, 417917, 485950, 835834, 2089585, 4179170, 10447925, 20895850]

約数ペア:

[(1, 20895850), (2, 10447925), (5, 4179170), (10, 2089585), (25, 835834), (43, 485950), (50, 417917), (86, 242975), (215, 97190), (430, 48595), (1075, 19438), (2150, 9719)]