21486309

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{7547}}^1$

素因数の和:7636

約数の個数: 16

約数和(自身を含む): 31278912

約数和(自身を除く): 9792603

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 7547, 22641, 98111, 294333, 550931, 1652793, 7162103, 21486309]

約数ペア:

[(1, 21486309), (3, 7162103), (13, 1652793), (39, 550931), (73, 294333), (219, 98111), (949, 22641), (2847, 7547)]