19004937021

素因数分解:

$3^2\times 7^1\times {\mathrm{10139}}^1\times {\mathrm{29753}}^1$

素因数の和:39905

約数の個数: 24

約数和(自身を含む): 31377378240

約数和(自身を除く): 12372441219

約数列:

[1, 3, 7, 9, 21, 63, 10139, 29753, 30417, 70973, 89259, 91251, 208271, 212919, 267777, 624813, 638757, 1874439, 301665667, 904997001, 2111659669, 2714991003, 6334979007, 19004937021]

約数ペア:

[(1, 19004937021), (3, 6334979007), (7, 2714991003), (9, 2111659669), (21, 904997001), (63, 301665667), (10139, 1874439), (29753, 638757), (30417, 624813), (70973, 267777), (89259, 212919), (91251, 208271)]