21247510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{111829}}^1$

素因数の和:111855

約数の個数: 16

約数和(自身を含む): 40258800

約数和(自身を除く): 19011290

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 111829, 223658, 559145, 1118290, 2124751, 4249502, 10623755, 21247510]

約数ペア:

[(1, 21247510), (2, 10623755), (5, 4249502), (10, 2124751), (19, 1118290), (38, 559145), (95, 223658), (190, 111829)]