21605697

素因数分解:

$3^4\times {\mathrm{359}}^1\times {\mathrm{743}}^1$

素因数の和:1114

約数の個数: 20

約数和(自身を含む): 32408640

約数和(自身を除く): 10802943

約数列:

[1, 3, 9, 27, 81, 359, 743, 1077, 2229, 3231, 6687, 9693, 20061, 29079, 60183, 266737, 800211, 2400633, 7201899, 21605697]

約数ペア:

[(1, 21605697), (3, 7201899), (9, 2400633), (27, 800211), (81, 266737), (359, 60183), (743, 29079), (1077, 20061), (2229, 9693), (3231, 6687)]