199468245

素因数分解:

$3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{20681}}^1$

素因数の和:21332

約数の個数: 16

約数和(自身を含む): 319660992

約数和(自身を除く): 120192747

約数列:

[1, 3, 5, 15, 643, 1929, 3215, 9645, 20681, 62043, 103405, 310215, 13297883, 39893649, 66489415, 199468245]

約数ペア:

[(1, 199468245), (3, 66489415), (5, 39893649), (15, 13297883), (643, 310215), (1929, 103405), (3215, 62043), (9645, 20681)]