291213307

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{19801}}^1$

素因数の和:20010

約数の個数: 16

約数和(自身を含む): 364990464

約数和(自身を除く): 73777157

約数列:

[1, 7, 11, 77, 191, 1337, 2101, 14707, 19801, 138607, 217811, 1524677, 3781991, 26473937, 41601901, 291213307]

約数ペア:

[(1, 291213307), (7, 41601901), (11, 26473937), (77, 3781991), (191, 1524677), (1337, 217811), (2101, 138607), (14707, 19801)]