21417495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129803}}^1$

素因数の和:129822

約数の個数: 16

約数和(自身を含む): 37383552

約数和(自身を除く): 15966057

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129803, 389409, 649015, 1427833, 1947045, 4283499, 7139165, 21417495]

約数ペア:

[(1, 21417495), (3, 7139165), (5, 4283499), (11, 1947045), (15, 1427833), (33, 649015), (55, 389409), (165, 129803)]