19993365

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21157}}^1$

素因数の和:21178

約数の個数: 32

約数和(自身を含む): 40623360

約数和(自身を除く): 20629995

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21157, 63471, 105785, 148099, 190413, 317355, 444297, 571239, 740495, 952065, 1332891, 2221485, 2856195, 3998673, 6664455, 19993365]

約数ペア:

[(1, 19993365), (3, 6664455), (5, 3998673), (7, 2856195), (9, 2221485), (15, 1332891), (21, 952065), (27, 740495), (35, 571239), (45, 444297), (63, 317355), (105, 190413), (135, 148099), (189, 105785), (315, 63471), (945, 21157)]