71931987

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{227}}^1\times {\mathrm{257}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 105530256

約数和(自身を除く): 33598269

約数列:

[1, 3, 9, 137, 227, 257, 411, 681, 771, 1233, 2043, 2313, 31099, 35209, 58339, 93297, 105627, 175017, 279891, 316881, 525051, 7992443, 23977329, 71931987]

約数ペア:

[(1, 71931987), (3, 23977329), (9, 7992443), (137, 525051), (227, 316881), (257, 279891), (411, 175017), (681, 105627), (771, 93297), (1233, 58339), (2043, 35209), (2313, 31099)]