81289341

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{16333}}^1$

素因数の和:16425

約数の個数: 24

約数和(自身を含む): 135898880

約数和(自身を除く): 54609539

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 4977, 16333, 48999, 114331, 146997, 342993, 1028979, 1290307, 3870921, 9032149, 11612763, 27096447, 81289341]

約数ペア:

[(1, 81289341), (3, 27096447), (7, 11612763), (9, 9032149), (21, 3870921), (63, 1290307), (79, 1028979), (237, 342993), (553, 146997), (711, 114331), (1659, 48999), (4977, 16333)]