20691266

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7459}}^1$

素因数の和:7553

約数の個数: 16

約数和(自身を含む): 33122400

約数和(自身を除く): 12431134

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7459, 14918, 141721, 283442, 544507, 1089014, 10345633, 20691266]

約数ペア:

[(1, 20691266), (2, 10345633), (19, 1089014), (38, 544507), (73, 283442), (146, 141721), (1387, 14918), (2774, 7459)]