2390409

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 4155840

約数和(自身を除く): 1765431

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 1997, 5991, 13979, 17973, 37943, 41937, 113829, 125811, 265601, 341487, 796803, 2390409]

約数ペア:

[(1, 2390409), (3, 796803), (7, 341487), (9, 265601), (19, 125811), (21, 113829), (57, 41937), (63, 37943), (133, 17973), (171, 13979), (399, 5991), (1197, 1997)]