20601081

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 31907840

約数和(自身を除く): 11306759

約数列:

[1, 3, 9, 27, 31, 93, 151, 163, 279, 453, 489, 837, 1359, 1467, 4077, 4401, 4681, 5053, 14043, 15159, 24613, 42129, 45477, 73839, 126387, 136431, 221517, 664551, 763003, 2289009, 6867027, 20601081]

約数ペア:

[(1, 20601081), (3, 6867027), (9, 2289009), (27, 763003), (31, 664551), (93, 221517), (151, 136431), (163, 126387), (279, 73839), (453, 45477), (489, 42129), (837, 24613), (1359, 15159), (1467, 14043), (4077, 5053), (4401, 4681)]