21363965

素因数分解:

$5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1069}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 29377920

約数和(自身を除く): 8013955

約数列:

[1, 5, 7, 35, 571, 1069, 2855, 3997, 5345, 7483, 19985, 37415, 610399, 3051995, 4272793, 21363965]

約数ペア:

[(1, 21363965), (5, 4272793), (7, 3051995), (35, 610399), (571, 37415), (1069, 19985), (2855, 7483), (3997, 5345)]