18686943

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{6991}}^1$

素因数の和:7017

約数の個数: 24

約数和(自身を含む): 30541056

約数和(自身を除く): 11854113

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 891, 2673, 6991, 20973, 62919, 76901, 188757, 230703, 566271, 692109, 1698813, 2076327, 6228981, 18686943]

約数ペア:

[(1, 18686943), (3, 6228981), (9, 2076327), (11, 1698813), (27, 692109), (33, 566271), (81, 230703), (99, 188757), (243, 76901), (297, 62919), (891, 20973), (2673, 6991)]