19721712

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2617}}^1$

素因数の和:2785

約数の個数: 40

約数和(自身を含む): 51291856

約数和(自身を除く): 31570144

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2617, 3768, 5234, 7536, 7851, 10468, 15702, 20936, 31404, 41872, 62808, 125616, 410869, 821738, 1232607, 1643476, 2465214, 3286952, 4930428, 6573904, 9860856, 19721712]

約数ペア:

[(1, 19721712), (2, 9860856), (3, 6573904), (4, 4930428), (6, 3286952), (8, 2465214), (12, 1643476), (16, 1232607), (24, 821738), (48, 410869), (157, 125616), (314, 62808), (471, 41872), (628, 31404), (942, 20936), (1256, 15702), (1884, 10468), (2512, 7851), (2617, 7536), (3768, 5234)]