18901265

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 4737775

約数列:

[1, 5, 37, 71, 185, 355, 1439, 2627, 7195, 13135, 53243, 102169, 266215, 510845, 3780253, 18901265]

約数ペア:

[(1, 18901265), (5, 3780253), (37, 510845), (71, 266215), (185, 102169), (355, 53243), (1439, 13135), (2627, 7195)]