19869297

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 31739904

約数和(自身を除く): 11870607

約数列:

[1, 3, 7, 21, 41, 47, 123, 141, 287, 329, 491, 861, 987, 1473, 1927, 3437, 5781, 10311, 13489, 20131, 23077, 40467, 60393, 69231, 140917, 161539, 422751, 484617, 946157, 2838471, 6623099, 19869297]

約数ペア:

[(1, 19869297), (3, 6623099), (7, 2838471), (21, 946157), (41, 484617), (47, 422751), (123, 161539), (141, 140917), (287, 69231), (329, 60393), (491, 40467), (861, 23077), (987, 20131), (1473, 13489), (1927, 10311), (3437, 5781)]