209865721

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{42821}}^1$

素因数の和:42876

約数の個数: 12

約数和(自身を含む): 235092780

約数和(自身を除く): 25227059

約数列:

[1, 13, 29, 169, 377, 4901, 42821, 556673, 1241809, 7236749, 16143517, 209865721]

約数ペア:

[(1, 209865721), (13, 16143517), (29, 7236749), (169, 1241809), (377, 556673), (4901, 42821)]