18164744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 36855000

約数和(自身を除く): 18690256

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 389, 449, 778, 898, 1556, 1796, 3112, 3592, 5057, 5837, 10114, 11674, 20228, 23348, 40456, 46696, 174661, 349322, 698644, 1397288, 2270593, 4541186, 9082372, 18164744]

約数ペア:

[(1, 18164744), (2, 9082372), (4, 4541186), (8, 2270593), (13, 1397288), (26, 698644), (52, 349322), (104, 174661), (389, 46696), (449, 40456), (778, 23348), (898, 20228), (1556, 11674), (1796, 10114), (3112, 5837), (3592, 5057)]