71893997

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2180

約数の個数: 16

約数和(自身を含む): 85034880

約数和(自身を除く): 13140883

約数列:

[1, 7, 37, 139, 259, 973, 1997, 5143, 13979, 36001, 73889, 277583, 517223, 1943081, 10270571, 71893997]

約数ペア:

[(1, 71893997), (7, 10270571), (37, 1943081), (139, 517223), (259, 277583), (973, 73889), (1997, 36001), (5143, 13979)]