21686258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1789}}^1$

素因数の和:1850

約数の個数: 32

約数和(自身を含む): 38664000

約数和(自身を除く): 16977742

約数列:

[1, 2, 11, 19, 22, 29, 38, 58, 209, 319, 418, 551, 638, 1102, 1789, 3578, 6061, 12122, 19679, 33991, 39358, 51881, 67982, 103762, 373901, 570691, 747802, 985739, 1141382, 1971478, 10843129, 21686258]

約数ペア:

[(1, 21686258), (2, 10843129), (11, 1971478), (19, 1141382), (22, 985739), (29, 747802), (38, 570691), (58, 373901), (209, 103762), (319, 67982), (418, 51881), (551, 39358), (638, 33991), (1102, 19679), (1789, 12122), (3578, 6061)]