21512061

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{1283}}^1$

素因数の和:1324

約数の個数: 28

約数和(自身を含む): 33681888

約数和(自身を除く): 12169827

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 729, 1283, 1863, 3849, 5589, 11547, 16767, 29509, 34641, 88527, 103923, 265581, 311769, 796743, 935307, 2390229, 7170687, 21512061]

約数ペア:

[(1, 21512061), (3, 7170687), (9, 2390229), (23, 935307), (27, 796743), (69, 311769), (81, 265581), (207, 103923), (243, 88527), (621, 34641), (729, 29509), (1283, 16767), (1863, 11547), (3849, 5589)]