21857885

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32869}}^1$

素因数の和:32900

約数の個数: 16

約数和(自身を含む): 31555200

約数和(自身を除く): 9697315

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 32869, 164345, 230083, 624511, 1150415, 3122555, 4371577, 21857885]

約数ペア:

[(1, 21857885), (5, 4371577), (7, 3122555), (19, 1150415), (35, 624511), (95, 230083), (133, 164345), (665, 32869)]