20187215853

素因数分解:

$3^1\times 7^2\times {\mathrm{13831}}^1\times {\mathrm{9929}}^1$

素因数の和:23777

約数の個数: 24

約数和(自身を含む): 31316201280

約数和(自身を除く): 11128985427

約数列:

[1, 3, 7, 21, 49, 147, 9929, 13831, 29787, 41493, 69503, 96817, 208509, 290451, 486521, 677719, 1459563, 2033157, 137327999, 411983997, 961295993, 2883887979, 6729071951, 20187215853]

約数ペア:

[(1, 20187215853), (3, 6729071951), (7, 2883887979), (21, 961295993), (49, 411983997), (147, 137327999), (9929, 2033157), (13831, 1459563), (29787, 677719), (41493, 486521), (69503, 290451), (96817, 208509)]