18199922

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 30632448

約数和(自身を除く): 12432526

約数列:

[1, 2, 13, 26, 43, 73, 86, 146, 223, 446, 559, 949, 1118, 1898, 2899, 3139, 5798, 6278, 9589, 16279, 19178, 32558, 40807, 81614, 124657, 211627, 249314, 423254, 699997, 1399994, 9099961, 18199922]

約数ペア:

[(1, 18199922), (2, 9099961), (13, 1399994), (26, 699997), (43, 423254), (73, 249314), (86, 211627), (146, 124657), (223, 81614), (446, 40807), (559, 32558), (949, 19178), (1118, 16279), (1898, 9589), (2899, 6278), (3139, 5798)]