21468741

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5297}}^1$

素因数の和:5500

約数の個数: 16

約数和(自身を含む): 32889984

約数和(自身を除く): 11421243

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5297, 15891, 37079, 111237, 1022321, 3066963, 7156247, 21468741]

約数ペア:

[(1, 21468741), (3, 7156247), (7, 3066963), (21, 1022321), (193, 111237), (579, 37079), (1351, 15891), (4053, 5297)]