254571009

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{26879}}^1$

素因数の和:26941

約数の個数: 32

約数和(自身を含む): 433520640

約数和(自身を除く): 178949631

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 3157, 9471, 26879, 80637, 188153, 295669, 564459, 887007, 1102039, 2069683, 3306117, 6209049, 7714273, 12122429, 23142819, 36367287, 84857003, 254571009]

約数ペア:

[(1, 254571009), (3, 84857003), (7, 36367287), (11, 23142819), (21, 12122429), (33, 7714273), (41, 6209049), (77, 3306117), (123, 2069683), (231, 1102039), (287, 887007), (451, 564459), (861, 295669), (1353, 188153), (3157, 80637), (9471, 26879)]