19801639

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2347}}^1$

素因数の和:2430

約数の個数: 16

約数和(自身を含む): 23667840

約数和(自身を除く): 3866201

約数列:

[1, 11, 13, 59, 143, 649, 767, 2347, 8437, 25817, 30511, 138473, 335621, 1523203, 1800149, 19801639]

約数ペア:

[(1, 19801639), (11, 1800149), (13, 1523203), (59, 335621), (143, 138473), (649, 30511), (767, 25817), (2347, 8437)]