20907938

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{1303}}^1$

素因数の和:1489

約数の個数: 16

約数和(自身を含む): 32109696

約数和(自身を除く): 11201758

約数列:

[1, 2, 71, 113, 142, 226, 1303, 2606, 8023, 16046, 92513, 147239, 185026, 294478, 10453969, 20907938]

約数ペア:

[(1, 20907938), (2, 10453969), (71, 294478), (113, 185026), (142, 147239), (226, 92513), (1303, 16046), (2606, 8023)]