21728248

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142949}}^1$

素因数の和:142974

約数の個数: 16

約数和(自身を含む): 42885000

約数和(自身を除く): 21156752

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142949, 285898, 571796, 1143592, 2716031, 5432062, 10864124, 21728248]

約数ペア:

[(1, 21728248), (2, 10864124), (4, 5432062), (8, 2716031), (19, 1143592), (38, 571796), (76, 285898), (152, 142949)]