1681209

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:957

約数の個数: 16

約数和(自身を含む): 2528640

約数和(自身を除く): 847431

約数列:

[1, 3, 9, 27, 71, 213, 639, 877, 1917, 2631, 7893, 23679, 62267, 186801, 560403, 1681209]

約数ペア:

[(1, 1681209), (3, 560403), (9, 186801), (27, 62267), (71, 23679), (213, 7893), (639, 2631), (877, 1917)]