20217676

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 36148896

約数和(自身を除く): 15931220

約数列:

[1, 2, 4, 71, 142, 257, 277, 284, 514, 554, 1028, 1108, 18247, 19667, 36494, 39334, 71189, 72988, 78668, 142378, 284756, 5054419, 10108838, 20217676]

約数ペア:

[(1, 20217676), (2, 10108838), (4, 5054419), (71, 284756), (142, 142378), (257, 78668), (277, 72988), (284, 71189), (514, 39334), (554, 36494), (1028, 19667), (1108, 18247)]