18886959

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7687}}^1$

素因数の和:7716

約数の個数: 32

約数和(自身を含む): 34442240

約数和(自身を除く): 15555281

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 7687, 23061, 53809, 69183, 99931, 161427, 207549, 299793, 484281, 699517, 899379, 1452843, 2098551, 2698137, 6295653, 18886959]

約数ペア:

[(1, 18886959), (3, 6295653), (7, 2698137), (9, 2098551), (13, 1452843), (21, 899379), (27, 699517), (39, 484281), (63, 299793), (91, 207549), (117, 161427), (189, 99931), (273, 69183), (351, 53809), (819, 23061), (2457, 7687)]