19998808

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{467}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 38666160

約数和(自身を除く): 18667352

約数列:

[1, 2, 4, 8, 53, 101, 106, 202, 212, 404, 424, 467, 808, 934, 1868, 3736, 5353, 10706, 21412, 24751, 42824, 47167, 49502, 94334, 99004, 188668, 198008, 377336, 2499851, 4999702, 9999404, 19998808]

約数ペア:

[(1, 19998808), (2, 9999404), (4, 4999702), (8, 2499851), (53, 377336), (101, 198008), (106, 188668), (202, 99004), (212, 94334), (404, 49502), (424, 47167), (467, 42824), (808, 24751), (934, 21412), (1868, 10706), (3736, 5353)]