18140941

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{641}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 22434048

約数和(自身を除く): 4293107

約数列:

[1, 7, 13, 91, 311, 641, 2177, 4043, 4487, 8333, 28301, 58331, 199351, 1395457, 2591563, 18140941]

約数ペア:

[(1, 18140941), (7, 2591563), (13, 1395457), (91, 199351), (311, 58331), (641, 28301), (2177, 8333), (4043, 4487)]