20668732

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38851}}^1$

素因数の和:38881

約数の個数: 24

約数和(自身を含む): 43514240

約数和(自身を除く): 22845508

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 38851, 77702, 155404, 271957, 543914, 738169, 1087828, 1476338, 2952676, 5167183, 10334366, 20668732]

約数ペア:

[(1, 20668732), (2, 10334366), (4, 5167183), (7, 2952676), (14, 1476338), (19, 1087828), (28, 738169), (38, 543914), (76, 271957), (133, 155404), (266, 77702), (532, 38851)]