20842874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 34978944

約数和(自身を除く): 14136070

約数列:

[1, 2, 13, 26, 43, 86, 103, 181, 206, 362, 559, 1118, 1339, 2353, 2678, 4429, 4706, 7783, 8858, 15566, 18643, 37286, 57577, 101179, 115154, 202358, 242359, 484718, 801649, 1603298, 10421437, 20842874]

約数ペア:

[(1, 20842874), (2, 10421437), (13, 1603298), (26, 801649), (43, 484718), (86, 242359), (103, 202358), (181, 115154), (206, 101179), (362, 57577), (559, 37286), (1118, 18643), (1339, 15566), (2353, 8858), (2678, 7783), (4429, 4706)]