21800016

素因数分解:

$2^4\times 3^7\times 7^1\times {\mathrm{89}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 73209600

約数和(自身を除く): 51409584

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 89, 108, 112, 126, 144, 162, 168, 178, 189, 216, 243, 252, 267, 324, 336, 356, 378, 432, 486, 504, 534, 567, 623, 648, 712, 729, 756, 801, 972, 1008, 1068, 1134, 1246, 1296, 1424, 1458, 1512, 1602, 1701, 1869, 1944, 2136, 2187, 2268, 2403, 2492, 2916, 3024, 3204, 3402, 3738, 3888, 4272, 4374, 4536, 4806, 4984, 5103, 5607, 5832, 6408, 6804, 7209, 7476, 8748, 9072, 9612, 9968, 10206, 11214, 11664, 12816, 13608, 14418, 14952, 15309, 16821, 17496, 19224, 20412, 21627, 22428, 27216, 28836, 29904, 30618, 33642, 34992, 38448, 40824, 43254, 44856, 50463, 57672, 61236, 64881, 67284, 81648, 86508, 89712, 100926, 115344, 122472, 129762, 134568, 151389, 173016, 194643, 201852, 244944, 259524, 269136, 302778, 346032, 389286, 403704, 454167, 519048, 605556, 778572, 807408, 908334, 1038096, 1211112, 1362501, 1557144, 1816668, 2422224, 2725002, 3114288, 3633336, 5450004, 7266672, 10900008, 21800016]

約数ペア:

[(1, 21800016), (2, 10900008), (3, 7266672), (4, 5450004), (6, 3633336), (7, 3114288), (8, 2725002), (9, 2422224), (12, 1816668), (14, 1557144), (16, 1362501), (18, 1211112), (21, 1038096), (24, 908334), (27, 807408), (28, 778572), (36, 605556), (42, 519048), (48, 454167), (54, 403704), (56, 389286), (63, 346032), (72, 302778), (81, 269136), (84, 259524), (89, 244944), (108, 201852), (112, 194643), (126, 173016), (144, 151389), (162, 134568), (168, 129762), (178, 122472), (189, 115344), (216, 100926), (243, 89712), (252, 86508), (267, 81648), (324, 67284), (336, 64881), (356, 61236), (378, 57672), (432, 50463), (486, 44856), (504, 43254), (534, 40824), (567, 38448), (623, 34992), (648, 33642), (712, 30618), (729, 29904), (756, 28836), (801, 27216), (972, 22428), (1008, 21627), (1068, 20412), (1134, 19224), (1246, 17496), (1296, 16821), (1424, 15309), (1458, 14952), (1512, 14418), (1602, 13608), (1701, 12816), (1869, 11664), (1944, 11214), (2136, 10206), (2187, 9968), (2268, 9612), (2403, 9072), (2492, 8748), (2916, 7476), (3024, 7209), (3204, 6804), (3402, 6408), (3738, 5832), (3888, 5607), (4272, 5103), (4374, 4984), (4536, 4806)]