21919084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 22674836

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 157, 167, 209, 314, 334, 418, 628, 668, 836, 1727, 1837, 2983, 3173, 3454, 3674, 5966, 6346, 6908, 7348, 11932, 12692, 26219, 32813, 34903, 52438, 65626, 69806, 104876, 131252, 139612, 288409, 498161, 576818, 996322, 1153636, 1992644, 5479771, 10959542, 21919084]

約数ペア:

[(1, 21919084), (2, 10959542), (4, 5479771), (11, 1992644), (19, 1153636), (22, 996322), (38, 576818), (44, 498161), (76, 288409), (157, 139612), (167, 131252), (209, 104876), (314, 69806), (334, 65626), (418, 52438), (628, 34903), (668, 32813), (836, 26219), (1727, 12692), (1837, 11932), (2983, 7348), (3173, 6908), (3454, 6346), (3674, 5966)]