18190809

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 34856640

約数和(自身を除く): 16665831

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 167, 171, 247, 273, 399, 441, 501, 637, 741, 819, 931, 1169, 1197, 1503, 1729, 1911, 2171, 2223, 2793, 3173, 3507, 5187, 5733, 6513, 8183, 8379, 9519, 10521, 12103, 15197, 15561, 19539, 22211, 24549, 28557, 36309, 41249, 45591, 66633, 73647, 106379, 108927, 123747, 136773, 155477, 199899, 288743, 319137, 371241, 466431, 866229, 957411, 1399293, 2021201, 2598687, 6063603, 18190809]

約数ペア:

[(1, 18190809), (3, 6063603), (7, 2598687), (9, 2021201), (13, 1399293), (19, 957411), (21, 866229), (39, 466431), (49, 371241), (57, 319137), (63, 288743), (91, 199899), (117, 155477), (133, 136773), (147, 123747), (167, 108927), (171, 106379), (247, 73647), (273, 66633), (399, 45591), (441, 41249), (501, 36309), (637, 28557), (741, 24549), (819, 22211), (931, 19539), (1169, 15561), (1197, 15197), (1503, 12103), (1729, 10521), (1911, 9519), (2171, 8379), (2223, 8183), (2793, 6513), (3173, 5733), (3507, 5187)]