123497143

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 162155520

約数和(自身を除く): 38658377

約数列:

[1, 7, 11, 23, 77, 137, 161, 253, 509, 959, 1507, 1771, 3151, 3563, 5599, 10549, 11707, 22057, 34661, 39193, 69733, 81949, 128777, 242627, 488131, 767063, 901439, 1603859, 5369441, 11227013, 17642449, 123497143]

約数ペア:

[(1, 123497143), (7, 17642449), (11, 11227013), (23, 5369441), (77, 1603859), (137, 901439), (161, 767063), (253, 488131), (509, 242627), (959, 128777), (1507, 81949), (1771, 69733), (3151, 39193), (3563, 34661), (5599, 22057), (10549, 11707)]