121890909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{7451}}^1$

素因数の和:7521

約数の個数: 32

約数和(自身を含む): 200309760

約数和(自身を除く): 78418851

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 2337, 5453, 7451, 16359, 22353, 52157, 141569, 156471, 305491, 424707, 916473, 990983, 2138437, 2972949, 5804329, 6415311, 17412987, 40630303, 121890909]

約数ペア:

[(1, 121890909), (3, 40630303), (7, 17412987), (19, 6415311), (21, 5804329), (41, 2972949), (57, 2138437), (123, 990983), (133, 916473), (287, 424707), (399, 305491), (779, 156471), (861, 141569), (2337, 52157), (5453, 22353), (7451, 16359)]