21847568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71867}}^1$

素因数の和:71894

約数の個数: 20

約数和(自身を含む): 44558160

約数和(自身を除く): 22710592

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71867, 143734, 287468, 574936, 1149872, 1365473, 2730946, 5461892, 10923784, 21847568]

約数ペア:

[(1, 21847568), (2, 10923784), (4, 5461892), (8, 2730946), (16, 1365473), (19, 1149872), (38, 574936), (76, 287468), (152, 143734), (304, 71867)]