16208721

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:682

約数の個数: 32

約数和(自身を含む): 25681920

約数和(自身を除く): 9473199

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 207, 387, 607, 621, 989, 1161, 1821, 2967, 5463, 8901, 13961, 16389, 26101, 26703, 41883, 78303, 125649, 234909, 376947, 600323, 704727, 1800969, 5402907, 16208721]

約数ペア:

[(1, 16208721), (3, 5402907), (9, 1800969), (23, 704727), (27, 600323), (43, 376947), (69, 234909), (129, 125649), (207, 78303), (387, 41883), (607, 26703), (621, 26101), (989, 16389), (1161, 13961), (1821, 8901), (2967, 5463)]