21960276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 38250924

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 114, 124, 156, 186, 228, 239, 247, 372, 403, 478, 494, 589, 717, 741, 806, 956, 988, 1178, 1209, 1434, 1482, 1612, 1767, 2356, 2418, 2868, 2964, 3107, 3534, 4541, 4836, 6214, 7068, 7409, 7657, 9082, 9321, 12428, 13623, 14818, 15314, 18164, 18642, 22227, 22971, 27246, 29636, 30628, 37284, 44454, 45942, 54492, 59033, 88908, 91884, 96317, 118066, 140771, 177099, 192634, 236132, 281542, 288951, 354198, 385268, 422313, 563084, 577902, 708396, 844626, 1155804, 1689252, 1830023, 3660046, 5490069, 7320092, 10980138, 21960276]

約数ペア:

[(1, 21960276), (2, 10980138), (3, 7320092), (4, 5490069), (6, 3660046), (12, 1830023), (13, 1689252), (19, 1155804), (26, 844626), (31, 708396), (38, 577902), (39, 563084), (52, 422313), (57, 385268), (62, 354198), (76, 288951), (78, 281542), (93, 236132), (114, 192634), (124, 177099), (156, 140771), (186, 118066), (228, 96317), (239, 91884), (247, 88908), (372, 59033), (403, 54492), (478, 45942), (494, 44454), (589, 37284), (717, 30628), (741, 29636), (806, 27246), (956, 22971), (988, 22227), (1178, 18642), (1209, 18164), (1434, 15314), (1482, 14818), (1612, 13623), (1767, 12428), (2356, 9321), (2418, 9082), (2868, 7657), (2964, 7409), (3107, 7068), (3534, 6214), (4541, 4836)]