31321899

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 55111680

約数和(自身を除く): 23789781

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 137, 171, 191, 399, 411, 573, 959, 1197, 1233, 1337, 1719, 2603, 2877, 3629, 4011, 7809, 8631, 10887, 12033, 18221, 23427, 25403, 26167, 32661, 54663, 76209, 78501, 163989, 183169, 228627, 235503, 497173, 549507, 1491519, 1648521, 3480211, 4474557, 10440633, 31321899]

約数ペア:

[(1, 31321899), (3, 10440633), (7, 4474557), (9, 3480211), (19, 1648521), (21, 1491519), (57, 549507), (63, 497173), (133, 235503), (137, 228627), (171, 183169), (191, 163989), (399, 78501), (411, 76209), (573, 54663), (959, 32661), (1197, 26167), (1233, 25403), (1337, 23427), (1719, 18221), (2603, 12033), (2877, 10887), (3629, 8631), (4011, 7809)]