890409

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 1375360

約数和(自身を除く): 484951

約数列:

[1, 3, 13, 17, 39, 51, 79, 221, 237, 289, 663, 867, 1027, 1343, 3081, 3757, 4029, 11271, 17459, 22831, 52377, 68493, 296803, 890409]

約数ペア:

[(1, 890409), (3, 296803), (13, 68493), (17, 52377), (39, 22831), (51, 17459), (79, 11271), (221, 4029), (237, 3757), (289, 3081), (663, 1343), (867, 1027)]