20417798

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 24

約数和(自身を含む): 32401200

約数和(自身を除く): 11983402

約数列:

[1, 2, 29, 58, 61, 122, 199, 398, 841, 1682, 1769, 3538, 5771, 11542, 12139, 24278, 51301, 102602, 167359, 334718, 352031, 704062, 10208899, 20417798]

約数ペア:

[(1, 20417798), (2, 10208899), (29, 704062), (58, 352031), (61, 334718), (122, 167359), (199, 102602), (398, 51301), (841, 24278), (1682, 12139), (1769, 11542), (3538, 5771)]