18293067

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 31036800

約数和(自身を除く): 12743733

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 169, 171, 211, 247, 351, 507, 513, 633, 741, 1521, 1899, 2223, 2743, 3211, 4009, 4563, 5697, 6669, 8229, 9633, 12027, 24687, 28899, 35659, 36081, 52117, 74061, 86697, 106977, 108243, 156351, 320931, 469053, 677521, 962793, 1407159, 2032563, 6097689, 18293067]

約数ペア:

[(1, 18293067), (3, 6097689), (9, 2032563), (13, 1407159), (19, 962793), (27, 677521), (39, 469053), (57, 320931), (117, 156351), (169, 108243), (171, 106977), (211, 86697), (247, 74061), (351, 52117), (507, 36081), (513, 35659), (633, 28899), (741, 24687), (1521, 12027), (1899, 9633), (2223, 8229), (2743, 6669), (3211, 5697), (4009, 4563)]