489268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^2$

素因数の和:211

約数の個数: 18

約数和(自身を含む): 931686

約数和(自身を除く): 442418

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 5044, 9409, 18818, 37636, 122317, 244634, 489268]

約数ペア:

[(1, 489268), (2, 244634), (4, 122317), (13, 37636), (26, 18818), (52, 9409), (97, 5044), (194, 2522), (388, 1261)]