2506491

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 4128320

約数和(自身を除く): 1621829

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 193, 333, 351, 481, 579, 999, 1443, 1737, 2509, 4329, 5211, 7141, 7527, 12987, 21423, 22581, 64269, 67743, 92833, 192807, 278499, 835497, 2506491]

約数ペア:

[(1, 2506491), (3, 835497), (9, 278499), (13, 192807), (27, 92833), (37, 67743), (39, 64269), (111, 22581), (117, 21423), (193, 12987), (333, 7527), (351, 7141), (481, 5211), (579, 4329), (999, 2509), (1443, 1737)]