157161879

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 265224960

約数和(自身を除く): 108063081

約数列:

[1, 3, 7, 9, 21, 63, 131, 137, 139, 393, 411, 417, 917, 959, 973, 1179, 1233, 1251, 2751, 2877, 2919, 8253, 8631, 8757, 17947, 18209, 19043, 53841, 54627, 57129, 125629, 127463, 133301, 161523, 163881, 171387, 376887, 382389, 399903, 1130661, 1147167, 1199709, 2494633, 7483899, 17462431, 22451697, 52387293, 157161879]

約数ペア:

[(1, 157161879), (3, 52387293), (7, 22451697), (9, 17462431), (21, 7483899), (63, 2494633), (131, 1199709), (137, 1147167), (139, 1130661), (393, 399903), (411, 382389), (417, 376887), (917, 171387), (959, 163881), (973, 161523), (1179, 133301), (1233, 127463), (1251, 125629), (2751, 57129), (2877, 54627), (2919, 53841), (8253, 19043), (8631, 18209), (8757, 17947)]