81955419

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17659}}^1$

素因数の和:17699

約数の個数: 32

約数和(自身を含む): 142410240

約数和(自身を除く): 60454821

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 17659, 52977, 123613, 229567, 300203, 370839, 688701, 900609, 1606969, 2101421, 3902639, 4820907, 6304263, 11707917, 27318473, 81955419]

約数ペア:

[(1, 81955419), (3, 27318473), (7, 11707917), (13, 6304263), (17, 4820907), (21, 3902639), (39, 2101421), (51, 1606969), (91, 900609), (119, 688701), (221, 370839), (273, 300203), (357, 229567), (663, 123613), (1547, 52977), (4641, 17659)]