28080549

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 49690368

約数和(自身を除く): 21609819

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 157, 167, 357, 471, 501, 1071, 1099, 1169, 1413, 1503, 2669, 2839, 3297, 3507, 8007, 8517, 9891, 10521, 18683, 19873, 24021, 25551, 26219, 56049, 59619, 78657, 168147, 178857, 183533, 235971, 445723, 550599, 1337169, 1651797, 3120061, 4011507, 9360183, 28080549]

約数ペア:

[(1, 28080549), (3, 9360183), (7, 4011507), (9, 3120061), (17, 1651797), (21, 1337169), (51, 550599), (63, 445723), (119, 235971), (153, 183533), (157, 178857), (167, 168147), (357, 78657), (471, 59619), (501, 56049), (1071, 26219), (1099, 25551), (1169, 24021), (1413, 19873), (1503, 18683), (2669, 10521), (2839, 9891), (3297, 8517), (3507, 8007)]