81196947

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{40823}}^1$

素因数の和:40859

約数の個数: 24

約数和(自身を含む): 133739424

約数和(自身を除く): 52542477

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 40823, 122469, 367407, 530699, 693991, 1592097, 2081973, 4776291, 6245919, 9021883, 27065649, 81196947]

約数ペア:

[(1, 81196947), (3, 27065649), (9, 9021883), (13, 6245919), (17, 4776291), (39, 2081973), (51, 1592097), (117, 693991), (153, 530699), (221, 367407), (663, 122469), (1989, 40823)]