21937475

素因数分解:

$5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1871}}^1$

素因数の和:1955

約数の個数: 24

約数和(自身を含む): 31569408

約数和(自身を除く): 9631933

約数列:

[1, 5, 7, 25, 35, 67, 175, 335, 469, 1675, 1871, 2345, 9355, 11725, 13097, 46775, 65485, 125357, 327425, 626785, 877499, 3133925, 4387495, 21937475]

約数ペア:

[(1, 21937475), (5, 4387495), (7, 3133925), (25, 877499), (35, 626785), (67, 327425), (175, 125357), (335, 65485), (469, 46775), (1675, 13097), (1871, 11725), (2345, 9355)]