20162493

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 15319107

約数列:

[1, 3, 9, 13, 17, 27, 31, 39, 51, 93, 109, 117, 153, 221, 279, 327, 351, 403, 459, 527, 663, 837, 981, 1209, 1417, 1581, 1853, 1989, 2943, 3379, 3627, 4251, 4743, 5559, 5967, 6851, 10137, 10881, 12753, 14229, 16677, 20553, 24089, 30411, 38259, 43927, 50031, 57443, 61659, 72267, 91233, 131781, 172329, 184977, 216801, 395343, 516987, 650403, 746759, 1186029, 1550961, 2240277, 6720831, 20162493]

約数ペア:

[(1, 20162493), (3, 6720831), (9, 2240277), (13, 1550961), (17, 1186029), (27, 746759), (31, 650403), (39, 516987), (51, 395343), (93, 216801), (109, 184977), (117, 172329), (153, 131781), (221, 91233), (279, 72267), (327, 61659), (351, 57443), (403, 50031), (459, 43927), (527, 38259), (663, 30411), (837, 24089), (981, 20553), (1209, 16677), (1417, 14229), (1581, 12753), (1853, 10881), (1989, 10137), (2943, 6851), (3379, 5967), (3627, 5559), (4251, 4743)]