661093881

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{739}}^1\times {\mathrm{1039}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 1034342400

約数和(自身を除く): 373248519

約数列:

[1, 3, 7, 21, 41, 123, 287, 739, 861, 1039, 2217, 3117, 5173, 7273, 15519, 21819, 30299, 42599, 90897, 127797, 212093, 298193, 636279, 767821, 894579, 2303463, 5374747, 16124241, 31480661, 94441983, 220364627, 661093881]

約数ペア:

[(1, 661093881), (3, 220364627), (7, 94441983), (21, 31480661), (41, 16124241), (123, 5374747), (287, 2303463), (739, 894579), (861, 767821), (1039, 636279), (2217, 298193), (3117, 212093), (5173, 127797), (7273, 90897), (15519, 42599), (21819, 30299)]