1993653

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 20

約数和(自身を含む): 3016288

約数和(自身を除く): 1022635

約数列:

[1, 3, 9, 27, 81, 151, 163, 453, 489, 1359, 1467, 4077, 4401, 12231, 13203, 24613, 73839, 221517, 664551, 1993653]

約数ペア:

[(1, 1993653), (3, 664551), (9, 221517), (27, 73839), (81, 24613), (151, 13203), (163, 12231), (453, 4401), (489, 4077), (1359, 1467)]