21979152

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 67704000

約数和(自身を除く): 45724848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 59, 72, 78, 104, 117, 118, 144, 156, 177, 199, 208, 234, 236, 312, 354, 398, 468, 472, 531, 597, 624, 708, 767, 796, 936, 944, 1062, 1194, 1416, 1534, 1592, 1791, 1872, 2124, 2301, 2388, 2587, 2832, 3068, 3184, 3582, 4248, 4602, 4776, 5174, 6136, 6903, 7164, 7761, 8496, 9204, 9552, 10348, 11741, 12272, 13806, 14328, 15522, 18408, 20696, 23283, 23482, 27612, 28656, 31044, 35223, 36816, 41392, 46566, 46964, 55224, 62088, 70446, 93132, 93928, 105669, 110448, 124176, 140892, 152633, 186264, 187856, 211338, 281784, 305266, 372528, 422676, 457899, 563568, 610532, 845352, 915798, 1221064, 1373697, 1690704, 1831596, 2442128, 2747394, 3663192, 5494788, 7326384, 10989576, 21979152]

約数ペア:

[(1, 21979152), (2, 10989576), (3, 7326384), (4, 5494788), (6, 3663192), (8, 2747394), (9, 2442128), (12, 1831596), (13, 1690704), (16, 1373697), (18, 1221064), (24, 915798), (26, 845352), (36, 610532), (39, 563568), (48, 457899), (52, 422676), (59, 372528), (72, 305266), (78, 281784), (104, 211338), (117, 187856), (118, 186264), (144, 152633), (156, 140892), (177, 124176), (199, 110448), (208, 105669), (234, 93928), (236, 93132), (312, 70446), (354, 62088), (398, 55224), (468, 46964), (472, 46566), (531, 41392), (597, 36816), (624, 35223), (708, 31044), (767, 28656), (796, 27612), (936, 23482), (944, 23283), (1062, 20696), (1194, 18408), (1416, 15522), (1534, 14328), (1592, 13806), (1791, 12272), (1872, 11741), (2124, 10348), (2301, 9552), (2388, 9204), (2587, 8496), (2832, 7761), (3068, 7164), (3184, 6903), (3582, 6136), (4248, 5174), (4602, 4776)]