31384143

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 55211520

約数和(自身を除く): 23827377

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 157, 167, 171, 399, 471, 501, 1099, 1169, 1197, 1413, 1503, 2983, 3173, 3297, 3507, 8949, 9519, 9891, 10521, 20881, 22211, 26219, 26847, 28557, 62643, 66633, 78657, 183533, 187929, 199899, 235971, 498161, 550599, 1494483, 1651797, 3487127, 4483449, 10461381, 31384143]

約数ペア:

[(1, 31384143), (3, 10461381), (7, 4483449), (9, 3487127), (19, 1651797), (21, 1494483), (57, 550599), (63, 498161), (133, 235971), (157, 199899), (167, 187929), (171, 183533), (399, 78657), (471, 66633), (501, 62643), (1099, 28557), (1169, 26847), (1197, 26219), (1413, 22211), (1503, 20881), (2983, 10521), (3173, 9891), (3297, 9519), (3507, 8949)]