21605776

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79433}}^1$

素因数の和:79458

約数の個数: 20

約数和(自身を含む): 44324172

約数和(自身を除く): 22718396

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79433, 158866, 317732, 635464, 1270928, 1350361, 2700722, 5401444, 10802888, 21605776]

約数ペア:

[(1, 21605776), (2, 10802888), (4, 5401444), (8, 2700722), (16, 1350361), (17, 1270928), (34, 635464), (68, 317732), (136, 158866), (272, 79433)]