253869

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 432288

約数和(自身を除く): 178419

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 157, 231, 471, 539, 1099, 1617, 1727, 3297, 5181, 7693, 12089, 23079, 36267, 84623, 253869]

約数ペア:

[(1, 253869), (3, 84623), (7, 36267), (11, 23079), (21, 12089), (33, 7693), (49, 5181), (77, 3297), (147, 1727), (157, 1617), (231, 1099), (471, 539)]