18059517

素因数分解:

$3^6\times 7^1\times {\mathrm{3539}}^1$

素因数の和:3564

約数の個数: 28

約数和(自身を含む): 30953760

約数和(自身を除く): 12894243

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3539, 5103, 10617, 24773, 31851, 74319, 95553, 222957, 286659, 668871, 859977, 2006613, 2579931, 6019839, 18059517]

約数ペア:

[(1, 18059517), (3, 6019839), (7, 2579931), (9, 2006613), (21, 859977), (27, 668871), (63, 286659), (81, 222957), (189, 95553), (243, 74319), (567, 31851), (729, 24773), (1701, 10617), (3539, 5103)]