18971481

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 28800000

約数和(自身を除く): 9828519

約数列:

[1, 3, 19, 23, 29, 57, 69, 87, 437, 499, 551, 667, 1311, 1497, 1653, 2001, 9481, 11477, 12673, 14471, 28443, 34431, 38019, 43413, 218063, 274949, 332833, 654189, 824847, 998499, 6323827, 18971481]

約数ペア:

[(1, 18971481), (3, 6323827), (19, 998499), (23, 824847), (29, 654189), (57, 332833), (69, 274949), (87, 218063), (437, 43413), (499, 38019), (551, 34431), (667, 28443), (1311, 14471), (1497, 12673), (1653, 11477), (2001, 9481)]