20823915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198323}}^1$

素因数の和:198338

約数の個数: 16

約数和(自身を含む): 38078208

約数和(自身を除く): 17254293

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198323, 594969, 991615, 1388261, 2974845, 4164783, 6941305, 20823915]

約数ペア:

[(1, 20823915), (3, 6941305), (5, 4164783), (7, 2974845), (15, 1388261), (21, 991615), (35, 594969), (105, 198323)]