21744208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71527}}^1$

素因数の和:71554

約数の個数: 20

約数和(自身を含む): 44347360

約数和(自身を除く): 22603152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71527, 143054, 286108, 572216, 1144432, 1359013, 2718026, 5436052, 10872104, 21744208]

約数ペア:

[(1, 21744208), (2, 10872104), (4, 5436052), (8, 2718026), (16, 1359013), (19, 1144432), (38, 572216), (76, 286108), (152, 143054), (304, 71527)]