21796496

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71699}}^1$

素因数の和:71726

約数の個数: 20

約数和(自身を含む): 44454000

約数和(自身を除く): 22657504

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71699, 143398, 286796, 573592, 1147184, 1362281, 2724562, 5449124, 10898248, 21796496]

約数ペア:

[(1, 21796496), (2, 10898248), (4, 5449124), (8, 2724562), (16, 1362281), (19, 1147184), (38, 573592), (76, 286796), (152, 143398), (304, 71699)]