21285972

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{34781}}^1$

素因数の和:34808

約数の個数: 36

約数和(自身を含む): 56972916

約数和(自身を除く): 35686944

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612, 34781, 69562, 104343, 139124, 208686, 313029, 417372, 591277, 626058, 1182554, 1252116, 1773831, 2365108, 3547662, 5321493, 7095324, 10642986, 21285972]

約数ペア:

[(1, 21285972), (2, 10642986), (3, 7095324), (4, 5321493), (6, 3547662), (9, 2365108), (12, 1773831), (17, 1252116), (18, 1182554), (34, 626058), (36, 591277), (51, 417372), (68, 313029), (102, 208686), (153, 139124), (204, 104343), (306, 69562), (612, 34781)]