21119952

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 62853120

約数和(自身を除く): 41733168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 239, 263, 336, 478, 526, 717, 789, 956, 1052, 1434, 1578, 1673, 1841, 1912, 2104, 2868, 3156, 3346, 3682, 3824, 4208, 5019, 5523, 5736, 6312, 6692, 7364, 10038, 11046, 11472, 12624, 13384, 14728, 20076, 22092, 26768, 29456, 40152, 44184, 62857, 80304, 88368, 125714, 188571, 251428, 377142, 439999, 502856, 754284, 879998, 1005712, 1319997, 1508568, 1759996, 2639994, 3017136, 3519992, 5279988, 7039984, 10559976, 21119952]

約数ペア:

[(1, 21119952), (2, 10559976), (3, 7039984), (4, 5279988), (6, 3519992), (7, 3017136), (8, 2639994), (12, 1759996), (14, 1508568), (16, 1319997), (21, 1005712), (24, 879998), (28, 754284), (42, 502856), (48, 439999), (56, 377142), (84, 251428), (112, 188571), (168, 125714), (239, 88368), (263, 80304), (336, 62857), (478, 44184), (526, 40152), (717, 29456), (789, 26768), (956, 22092), (1052, 20076), (1434, 14728), (1578, 13384), (1673, 12624), (1841, 11472), (1912, 11046), (2104, 10038), (2868, 7364), (3156, 6692), (3346, 6312), (3682, 5736), (3824, 5523), (4208, 5019)]