21502064

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31253}}^1$

素因数の和:31304

約数の個数: 20

約数和(自身を含む): 42630456

約数和(自身を除く): 21128392

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31253, 62506, 125012, 250024, 500048, 1343879, 2687758, 5375516, 10751032, 21502064]

約数ペア:

[(1, 21502064), (2, 10751032), (4, 5375516), (8, 2687758), (16, 1343879), (43, 500048), (86, 250024), (172, 125012), (344, 62506), (688, 31253)]