21999608975

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{409}}^1\times {\mathrm{19739}}^1$

素因数の和:20267

約数の個数: 24

約数和(自身を含む): 27598494000

約数和(自身を除く): 5598885025

約数列:

[1, 5, 25, 109, 409, 545, 2045, 2725, 10225, 19739, 44581, 98695, 222905, 493475, 1114525, 2151551, 8073251, 10757755, 40366255, 53788775, 201831275, 879984359, 4399921795, 21999608975]

約数ペア:

[(1, 21999608975), (5, 4399921795), (25, 879984359), (109, 201831275), (409, 53788775), (545, 40366255), (2045, 10757755), (2725, 8073251), (10225, 2151551), (19739, 1114525), (44581, 493475), (98695, 222905)]