21245768

素因数分解:

$2^3\times {\mathrm{571}}^1\times {\mathrm{4651}}^1$

素因数の和:5228

約数の個数: 16

約数和(自身を含む): 39914160

約数和(自身を除く): 18668392

約数列:

[1, 2, 4, 8, 571, 1142, 2284, 4568, 4651, 9302, 18604, 37208, 2655721, 5311442, 10622884, 21245768]

約数ペア:

[(1, 21245768), (2, 10622884), (4, 5311442), (8, 2655721), (571, 37208), (1142, 18604), (2284, 9302), (4568, 4651)]