81652779

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77543}}^1$

素因数の和:77568

約数の個数: 20

約数和(自身を含む): 131359536

約数和(自身を除く): 49706757

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77543, 232629, 697887, 1008059, 2093661, 3024177, 6280983, 9072531, 27217593, 81652779]

約数ペア:

[(1, 81652779), (3, 27217593), (9, 9072531), (13, 6280983), (27, 3024177), (39, 2093661), (81, 1008059), (117, 697887), (351, 232629), (1053, 77543)]