20814858

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^2\times {\mathrm{109}}^1$

素因数の和:323

約数の個数: 36

約数和(自身を含む): 45958770

約数和(自身を除く): 25143912

約数列:

[1, 2, 3, 6, 9, 18, 103, 109, 206, 218, 309, 327, 618, 654, 927, 981, 1854, 1962, 10609, 11227, 21218, 22454, 31827, 33681, 63654, 67362, 95481, 101043, 190962, 202086, 1156381, 2312762, 3469143, 6938286, 10407429, 20814858]

約数ペア:

[(1, 20814858), (2, 10407429), (3, 6938286), (6, 3469143), (9, 2312762), (18, 1156381), (103, 202086), (109, 190962), (206, 101043), (218, 95481), (309, 67362), (327, 63654), (618, 33681), (654, 31827), (927, 22454), (981, 21218), (1854, 11227), (1962, 10609)]