20281485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{829}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 37290240

約数和(自身を除く): 17008755

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 233, 699, 829, 1165, 1631, 2487, 3495, 4145, 4893, 5803, 8155, 12435, 17409, 24465, 29015, 87045, 193157, 579471, 965785, 1352099, 2897355, 4056297, 6760495, 20281485]

約数ペア:

[(1, 20281485), (3, 6760495), (5, 4056297), (7, 2897355), (15, 1352099), (21, 965785), (35, 579471), (105, 193157), (233, 87045), (699, 29015), (829, 24465), (1165, 17409), (1631, 12435), (2487, 8155), (3495, 5803), (4145, 4893)]