21904467

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{1229}}^1$

素因数の和:1702

約数の個数: 16

約数和(自身を含む): 31547040

約数和(自身を除く): 9642573

約数列:

[1, 3, 13, 39, 457, 1229, 1371, 3687, 5941, 15977, 17823, 47931, 561653, 1684959, 7301489, 21904467]

約数ペア:

[(1, 21904467), (3, 7301489), (13, 1684959), (39, 561653), (457, 47931), (1229, 17823), (1371, 15977), (3687, 5941)]