21139998

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{320303}}^1$

素因数の和:320319

約数の個数: 16

約数和(自身を含む): 46123776

約数和(自身を除く): 24983778

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 320303, 640606, 960909, 1921818, 3523333, 7046666, 10569999, 21139998]

約数ペア:

[(1, 21139998), (2, 10569999), (3, 7046666), (6, 3523333), (11, 1921818), (22, 960909), (33, 640606), (66, 320303)]