20790728

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21839}}^1$

素因数の和:21869

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 26383672

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21839, 43678, 87356, 152873, 174712, 305746, 371263, 611492, 742526, 1222984, 1485052, 2598841, 2970104, 5197682, 10395364, 20790728]

約数ペア:

[(1, 20790728), (2, 10395364), (4, 5197682), (7, 2970104), (8, 2598841), (14, 1485052), (17, 1222984), (28, 742526), (34, 611492), (56, 371263), (68, 305746), (119, 174712), (136, 152873), (238, 87356), (476, 43678), (952, 21839)]