20989662

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 46584720

約数和(自身を除く): 25595058

約数列:

[1, 2, 3, 6, 17, 23, 34, 46, 51, 69, 102, 138, 389, 391, 529, 778, 782, 1058, 1167, 1173, 1587, 2334, 2346, 3174, 6613, 8947, 8993, 13226, 17894, 17986, 19839, 26841, 26979, 39678, 53682, 53958, 152099, 205781, 304198, 411562, 456297, 617343, 912594, 1234686, 3498277, 6996554, 10494831, 20989662]

約数ペア:

[(1, 20989662), (2, 10494831), (3, 6996554), (6, 3498277), (17, 1234686), (23, 912594), (34, 617343), (46, 456297), (51, 411562), (69, 304198), (102, 205781), (138, 152099), (389, 53958), (391, 53682), (529, 39678), (778, 26979), (782, 26841), (1058, 19839), (1167, 17986), (1173, 17894), (1587, 13226), (2334, 8993), (2346, 8947), (3174, 6613)]