19993925

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 29004096

約数和(自身を除く): 9010171

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 2657, 7525, 13285, 18599, 66425, 92995, 114251, 464975, 571255, 799757, 2856275, 3998785, 19993925]

約数ペア:

[(1, 19993925), (5, 3998785), (7, 2856275), (25, 799757), (35, 571255), (43, 464975), (175, 114251), (215, 92995), (301, 66425), (1075, 18599), (1505, 13285), (2657, 7525)]