21160867

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1831}}^1$

素因数の和:1978

約数の個数: 16

約数和(自身を含む): 26263552

約数和(自身を除く): 5102685

約数列:

[1, 7, 13, 91, 127, 889, 1651, 1831, 11557, 12817, 23803, 166621, 232537, 1627759, 3022981, 21160867]

約数ペア:

[(1, 21160867), (7, 3022981), (13, 1627759), (91, 232537), (127, 166621), (889, 23803), (1651, 12817), (1831, 11557)]