388778907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1\times {\mathrm{857}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 578223360

約数和(自身を除く): 189444453

約数列:

[1, 3, 11, 33, 59, 177, 233, 649, 699, 857, 1947, 2563, 2571, 7689, 9427, 13747, 28281, 41241, 50563, 151217, 151689, 199681, 453651, 556193, 599043, 1668579, 2196491, 6589473, 11781179, 35343537, 129592969, 388778907]

約数ペア:

[(1, 388778907), (3, 129592969), (11, 35343537), (33, 11781179), (59, 6589473), (177, 2196491), (233, 1668579), (649, 599043), (699, 556193), (857, 453651), (1947, 199681), (2563, 151689), (2571, 151217), (7689, 50563), (9427, 41241), (13747, 28281)]