21686562

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 52992000

約数和(自身を除く): 31305438

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 27, 38, 46, 54, 57, 69, 114, 138, 171, 207, 342, 414, 437, 513, 621, 874, 919, 1026, 1242, 1311, 1838, 2622, 2757, 3933, 5514, 7866, 8271, 11799, 16542, 17461, 21137, 23598, 24813, 34922, 42274, 49626, 52383, 63411, 104766, 126822, 157149, 190233, 314298, 380466, 401603, 471447, 570699, 803206, 942894, 1141398, 1204809, 2409618, 3614427, 7228854, 10843281, 21686562]

約数ペア:

[(1, 21686562), (2, 10843281), (3, 7228854), (6, 3614427), (9, 2409618), (18, 1204809), (19, 1141398), (23, 942894), (27, 803206), (38, 570699), (46, 471447), (54, 401603), (57, 380466), (69, 314298), (114, 190233), (138, 157149), (171, 126822), (207, 104766), (342, 63411), (414, 52383), (437, 49626), (513, 42274), (621, 34922), (874, 24813), (919, 23598), (1026, 21137), (1242, 17461), (1311, 16542), (1838, 11799), (2622, 8271), (2757, 7866), (3933, 5514)]