20381456

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{27103}}^1$

素因数の和:27158

約数の個数: 20

約数和(自身を含む): 40330752

約数和(自身を除く): 19949296

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 27103, 54206, 108412, 216824, 433648, 1273841, 2547682, 5095364, 10190728, 20381456]

約数ペア:

[(1, 20381456), (2, 10190728), (4, 5095364), (8, 2547682), (16, 1273841), (47, 433648), (94, 216824), (188, 108412), (376, 54206), (752, 27103)]