21556206

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{19009}}^1$

素因数の和:19030

約数の個数: 40

約数和(自身を含む): 55205040

約数和(自身を除く): 33648834

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 19009, 38018, 57027, 114054, 133063, 171081, 266126, 342162, 399189, 513243, 798378, 1026486, 1197567, 1539729, 2395134, 3079458, 3592701, 7185402, 10778103, 21556206]

約数ペア:

[(1, 21556206), (2, 10778103), (3, 7185402), (6, 3592701), (7, 3079458), (9, 2395134), (14, 1539729), (18, 1197567), (21, 1026486), (27, 798378), (42, 513243), (54, 399189), (63, 342162), (81, 266126), (126, 171081), (162, 133063), (189, 114054), (378, 57027), (567, 38018), (1134, 19009)]