21449045

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1489}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 26748480

約数和(自身を除く): 5299435

約数列:

[1, 5, 43, 67, 215, 335, 1489, 2881, 7445, 14405, 64027, 99763, 320135, 498815, 4289809, 21449045]

約数ペア:

[(1, 21449045), (5, 4289809), (43, 498815), (67, 320135), (215, 99763), (335, 64027), (1489, 14405), (2881, 7445)]