20404516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{15991}}^1$

素因数の和:16035

約数の個数: 24

約数和(自身を含む): 40299840

約数和(自身を除く): 19895324

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 15991, 31982, 63964, 175901, 351802, 463739, 703604, 927478, 1854956, 5101129, 10202258, 20404516]

約数ペア:

[(1, 20404516), (2, 10202258), (4, 5101129), (11, 1854956), (22, 927478), (29, 703604), (44, 463739), (58, 351802), (116, 175901), (319, 63964), (638, 31982), (1276, 15991)]