20155257

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 31824000

約数和(自身を除く): 11668743

約数列:

[1, 3, 9, 19, 27, 57, 101, 171, 303, 389, 513, 909, 1167, 1919, 2727, 3501, 5757, 7391, 10503, 17271, 22173, 39289, 51813, 66519, 117867, 199557, 353601, 746491, 1060803, 2239473, 6718419, 20155257]

約数ペア:

[(1, 20155257), (3, 6718419), (9, 2239473), (19, 1060803), (27, 746491), (57, 353601), (101, 199557), (171, 117867), (303, 66519), (389, 51813), (513, 39289), (909, 22173), (1167, 17271), (1919, 10503), (2727, 7391), (3501, 5757)]