21857718

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{43891}}^1$

素因数の和:43979

約数の個数: 16

約数和(自身を含む): 44243136

約数和(自身を除く): 22385418

約数列:

[1, 2, 3, 6, 83, 166, 249, 498, 43891, 87782, 131673, 263346, 3642953, 7285906, 10928859, 21857718]

約数ペア:

[(1, 21857718), (2, 10928859), (3, 7285906), (6, 3642953), (83, 263346), (166, 131673), (249, 87782), (498, 43891)]