217872391

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{31489}}^1$

素因数の和:31554

約数の個数: 16

約数和(自身を含む): 258469920

約数和(自身を除く): 40597529

約数列:

[1, 11, 17, 37, 187, 407, 629, 6919, 31489, 346379, 535313, 1165093, 5888443, 12816023, 19806581, 217872391]

約数ペア:

[(1, 217872391), (11, 19806581), (17, 12816023), (37, 5888443), (187, 1165093), (407, 535313), (629, 346379), (6919, 31489)]