21961188

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 59215520

約数和(自身を除く): 37254332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 97, 114, 171, 194, 228, 291, 331, 342, 388, 582, 662, 684, 873, 993, 1164, 1324, 1746, 1843, 1986, 2979, 3492, 3686, 3972, 5529, 5958, 6289, 7372, 11058, 11916, 12578, 16587, 18867, 22116, 25156, 32107, 33174, 37734, 56601, 64214, 66348, 75468, 96321, 113202, 128428, 192642, 226404, 288963, 385284, 577926, 610033, 1155852, 1220066, 1830099, 2440132, 3660198, 5490297, 7320396, 10980594, 21961188]

約数ペア:

[(1, 21961188), (2, 10980594), (3, 7320396), (4, 5490297), (6, 3660198), (9, 2440132), (12, 1830099), (18, 1220066), (19, 1155852), (36, 610033), (38, 577926), (57, 385284), (76, 288963), (97, 226404), (114, 192642), (171, 128428), (194, 113202), (228, 96321), (291, 75468), (331, 66348), (342, 64214), (388, 56601), (582, 37734), (662, 33174), (684, 32107), (873, 25156), (993, 22116), (1164, 18867), (1324, 16587), (1746, 12578), (1843, 11916), (1986, 11058), (2979, 7372), (3492, 6289), (3686, 5958), (3972, 5529)]