208403989

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^2\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 234555840

約数和(自身を除く): 26151851

約数列:

[1, 19, 23, 59, 137, 437, 1121, 1357, 2603, 3151, 3481, 8083, 25783, 59869, 66139, 80063, 153577, 185909, 476897, 1521197, 3532271, 9061043, 10968631, 208403989]

約数ペア:

[(1, 208403989), (19, 10968631), (23, 9061043), (59, 3532271), (137, 1521197), (437, 476897), (1121, 185909), (1357, 153577), (2603, 80063), (3151, 66139), (3481, 59869), (8083, 25783)]