251566341

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{991}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 378642432

約数和(自身を除く): 127076091

約数列:

[1, 3, 13, 23, 39, 69, 283, 299, 849, 897, 991, 2973, 3679, 6509, 11037, 12883, 19527, 22793, 38649, 68379, 84617, 253851, 280453, 296309, 841359, 888927, 3645889, 6450419, 10937667, 19351257, 83855447, 251566341]

約数ペア:

[(1, 251566341), (3, 83855447), (13, 19351257), (23, 10937667), (39, 6450419), (69, 3645889), (283, 888927), (299, 841359), (849, 296309), (897, 280453), (991, 253851), (2973, 84617), (3679, 68379), (6509, 38649), (11037, 22793), (12883, 19527)]