21779984

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17231}}^1$

素因数の和:17318

約数の個数: 20

約数和(自身を含む): 42735360

約数和(自身を除く): 20955376

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17231, 34462, 68924, 137848, 275696, 1361249, 2722498, 5444996, 10889992, 21779984]

約数ペア:

[(1, 21779984), (2, 10889992), (4, 5444996), (8, 2722498), (16, 1361249), (79, 275696), (158, 137848), (316, 68924), (632, 34462), (1264, 17231)]