21909688

素因数分解:

$2^3\times {\mathrm{181}}^1\times {\mathrm{15131}}^1$

素因数の和:15318

約数の個数: 16

約数和(自身を含む): 41310360

約数和(自身を除く): 19400672

約数列:

[1, 2, 4, 8, 181, 362, 724, 1448, 15131, 30262, 60524, 121048, 2738711, 5477422, 10954844, 21909688]

約数ペア:

[(1, 21909688), (2, 10954844), (4, 5477422), (8, 2738711), (181, 121048), (362, 60524), (724, 30262), (1448, 15131)]