2691639

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 4090320

約数和(自身を除く): 1398681

約数列:

[1, 3, 9, 37, 59, 111, 137, 177, 333, 411, 531, 1233, 2183, 5069, 6549, 8083, 15207, 19647, 24249, 45621, 72747, 299071, 897213, 2691639]

約数ペア:

[(1, 2691639), (3, 897213), (9, 299071), (37, 72747), (59, 45621), (111, 24249), (137, 19647), (177, 15207), (333, 8083), (411, 6549), (531, 5069), (1233, 2183)]