81605841538

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{21011}}^1\times {\mathrm{11491}}^1$

素因数の和:32530

約数の個数: 24

約数和(自身を含む): 132566977296

約数和(自身を除く): 50961135758

約数列:

[1, 2, 13, 26, 169, 338, 11491, 21011, 22982, 42022, 149383, 273143, 298766, 546286, 1941979, 3550859, 3883958, 7101718, 241437401, 482874802, 3138686213, 6277372426, 40802920769, 81605841538]

約数ペア:

[(1, 81605841538), (2, 40802920769), (13, 6277372426), (26, 3138686213), (169, 482874802), (338, 241437401), (11491, 7101718), (21011, 3883958), (22982, 3550859), (42022, 1941979), (149383, 546286), (273143, 298766)]