21918856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144203}}^1$

素因数の和:144228

約数の個数: 16

約数和(自身を含む): 43261200

約数和(自身を除く): 21342344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144203, 288406, 576812, 1153624, 2739857, 5479714, 10959428, 21918856]

約数ペア:

[(1, 21918856), (2, 10959428), (4, 5479714), (8, 2739857), (19, 1153624), (38, 576812), (76, 288406), (152, 144203)]