20812592

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 41512224

約数和(自身を除く): 20699632

約数列:

[1, 2, 4, 8, 16, 73, 103, 146, 173, 206, 292, 346, 412, 584, 692, 824, 1168, 1384, 1648, 2768, 7519, 12629, 15038, 17819, 25258, 30076, 35638, 50516, 60152, 71276, 101032, 120304, 142552, 202064, 285104, 1300787, 2601574, 5203148, 10406296, 20812592]

約数ペア:

[(1, 20812592), (2, 10406296), (4, 5203148), (8, 2601574), (16, 1300787), (73, 285104), (103, 202064), (146, 142552), (173, 120304), (206, 101032), (292, 71276), (346, 60152), (412, 50516), (584, 35638), (692, 30076), (824, 25258), (1168, 17819), (1384, 15038), (1648, 12629), (2768, 7519)]