21872499

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2579}}^1$

素因数の和:2850

約数の個数: 16

約数和(自身を含む): 31950720

約数和(自身を除く): 10078221

約数列:

[1, 3, 11, 33, 257, 771, 2579, 2827, 7737, 8481, 28369, 85107, 662803, 1988409, 7290833, 21872499]

約数ペア:

[(1, 21872499), (3, 7290833), (11, 1988409), (33, 662803), (257, 85107), (771, 28369), (2579, 8481), (2827, 7737)]