2490159

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^2$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 4045440

約数和(自身を除く): 1555281

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 1501, 1659, 4503, 6241, 10507, 18723, 31521, 43687, 118579, 131061, 355737, 830053, 2490159]

約数ペア:

[(1, 2490159), (3, 830053), (7, 355737), (19, 131061), (21, 118579), (57, 43687), (79, 31521), (133, 18723), (237, 10507), (399, 6241), (553, 4503), (1501, 1659)]