253670403

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{42089}}^1$

素因数の和:42147

約数の個数: 24

約数和(自身を含む): 403053840

約数和(自身を除く): 149383437

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 42089, 126267, 294623, 883869, 1725649, 2062361, 5176947, 6187083, 12079543, 36238629, 84556801, 253670403]

約数ペア:

[(1, 253670403), (3, 84556801), (7, 36238629), (21, 12079543), (41, 6187083), (49, 5176947), (123, 2062361), (147, 1725649), (287, 883869), (861, 294623), (2009, 126267), (6027, 42089)]