21057112

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49663}}^1$

素因数の和:49722

約数の個数: 16

約数和(自身を含む): 40227840

約数和(自身を除く): 19170728

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49663, 99326, 198652, 397304, 2632139, 5264278, 10528556, 21057112]

約数ペア:

[(1, 21057112), (2, 10528556), (4, 5264278), (8, 2632139), (53, 397304), (106, 198652), (212, 99326), (424, 49663)]