81890589

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{997}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 126466560

約数和(自身を除く): 44575971

約数列:

[1, 3, 11, 19, 33, 57, 131, 209, 393, 627, 997, 1441, 2489, 2991, 4323, 7467, 10967, 18943, 27379, 32901, 56829, 82137, 130607, 208373, 391821, 625119, 1436677, 2481533, 4310031, 7444599, 27296863, 81890589]

約数ペア:

[(1, 81890589), (3, 27296863), (11, 7444599), (19, 4310031), (33, 2481533), (57, 1436677), (131, 625119), (209, 391821), (393, 208373), (627, 130607), (997, 82137), (1441, 56829), (2489, 32901), (2991, 27379), (4323, 18943), (7467, 10967)]