21986174

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 38737920

約数和(自身を除く): 16751746

約数列:

[1, 2, 7, 14, 79, 103, 158, 193, 206, 386, 553, 721, 1106, 1351, 1442, 2702, 8137, 15247, 16274, 19879, 30494, 39758, 56959, 106729, 113918, 139153, 213458, 278306, 1570441, 3140882, 10993087, 21986174]

約数ペア:

[(1, 21986174), (2, 10993087), (7, 3140882), (14, 1570441), (79, 278306), (103, 213458), (158, 139153), (193, 113918), (206, 106729), (386, 56959), (553, 39758), (721, 30494), (1106, 19879), (1351, 16274), (1442, 15247), (2702, 8137)]