21903344

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80527}}^1$

素因数の和:80552

約数の個数: 20

約数和(自身を含む): 44934624

約数和(自身を除く): 23031280

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80527, 161054, 322108, 644216, 1288432, 1368959, 2737918, 5475836, 10951672, 21903344]

約数ペア:

[(1, 21903344), (2, 10951672), (4, 5475836), (8, 2737918), (16, 1368959), (17, 1288432), (34, 644216), (68, 322108), (136, 161054), (272, 80527)]