19988266

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1151}}^1$

素因数の和:1629

約数の個数: 16

約数和(自身を含む): 31656960

約数和(自身を除く): 11668694

約数列:

[1, 2, 19, 38, 457, 914, 1151, 2302, 8683, 17366, 21869, 43738, 526007, 1052014, 9994133, 19988266]

約数ペア:

[(1, 19988266), (2, 9994133), (19, 1052014), (38, 526007), (457, 43738), (914, 21869), (1151, 17366), (2302, 8683)]