21216290

素因数分解:

$2^1\times 5^1\times {\mathrm{577}}^1\times {\mathrm{3677}}^1$

素因数の和:4261

約数の個数: 16

約数和(自身を含む): 38265912

約数和(自身を除く): 17049622

約数列:

[1, 2, 5, 10, 577, 1154, 2885, 3677, 5770, 7354, 18385, 36770, 2121629, 4243258, 10608145, 21216290]

約数ペア:

[(1, 21216290), (2, 10608145), (5, 4243258), (10, 2121629), (577, 36770), (1154, 18385), (2885, 7354), (3677, 5770)]