20308995

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21491}}^1$

素因数の和:21512

約数の個数: 32

約数和(自身を含む): 41264640

約数和(自身を除く): 20955645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21491, 64473, 107455, 150437, 193419, 322365, 451311, 580257, 752185, 967095, 1353933, 2256555, 2901285, 4061799, 6769665, 20308995]

約数ペア:

[(1, 20308995), (3, 6769665), (5, 4061799), (7, 2901285), (9, 2256555), (15, 1353933), (21, 967095), (27, 752185), (35, 580257), (45, 451311), (63, 322365), (105, 193419), (135, 150437), (189, 107455), (315, 64473), (945, 21491)]