81723249

素因数分解:

$3^4\times {\mathrm{659}}^1\times {\mathrm{1531}}^1$

素因数の和:2202

約数の個数: 20

約数和(自身を含む): 122345520

約数和(自身を除く): 40622271

約数列:

[1, 3, 9, 27, 81, 659, 1531, 1977, 4593, 5931, 13779, 17793, 41337, 53379, 124011, 1008929, 3026787, 9080361, 27241083, 81723249]

約数ペア:

[(1, 81723249), (3, 27241083), (9, 9080361), (27, 3026787), (81, 1008929), (659, 124011), (1531, 53379), (1977, 41337), (4593, 17793), (5931, 13779)]