21568496

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70949}}^1$

素因数の和:70976

約数の個数: 20

約数和(自身を含む): 43989000

約数和(自身を除く): 22420504

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70949, 141898, 283796, 567592, 1135184, 1348031, 2696062, 5392124, 10784248, 21568496]

約数ペア:

[(1, 21568496), (2, 10784248), (4, 5392124), (8, 2696062), (16, 1348031), (19, 1135184), (38, 567592), (76, 283796), (152, 141898), (304, 70949)]