81665591

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{3911}}^1$

素因数の和:4094

約数の個数: 16

約数和(自身を含む): 98895360

約数和(自身を除く): 17229769

約数列:

[1, 7, 19, 133, 157, 1099, 2983, 3911, 20881, 27377, 74309, 520163, 614027, 4298189, 11666513, 81665591]

約数ペア:

[(1, 81665591), (7, 11666513), (19, 4298189), (133, 614027), (157, 520163), (1099, 74309), (2983, 27377), (3911, 20881)]