19557216

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 144

約数和(自身を含む): 64864800

約数和(自身を除く): 45307584

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 89, 96, 109, 112, 126, 144, 168, 178, 218, 224, 252, 267, 288, 327, 336, 356, 436, 504, 534, 623, 654, 672, 712, 763, 801, 872, 981, 1008, 1068, 1246, 1308, 1424, 1526, 1602, 1744, 1869, 1962, 2016, 2136, 2289, 2492, 2616, 2848, 3052, 3204, 3488, 3738, 3924, 4272, 4578, 4984, 5232, 5607, 6104, 6408, 6867, 7476, 7848, 8544, 9156, 9701, 9968, 10464, 11214, 12208, 12816, 13734, 14952, 15696, 18312, 19402, 19936, 22428, 24416, 25632, 27468, 29103, 29904, 31392, 36624, 38804, 44856, 54936, 58206, 59808, 67907, 73248, 77608, 87309, 89712, 109872, 116412, 135814, 155216, 174618, 179424, 203721, 219744, 232824, 271628, 310432, 349236, 407442, 465648, 543256, 611163, 698472, 814884, 931296, 1086512, 1222326, 1396944, 1629768, 2173024, 2444652, 2793888, 3259536, 4889304, 6519072, 9778608, 19557216]

約数ペア:

[(1, 19557216), (2, 9778608), (3, 6519072), (4, 4889304), (6, 3259536), (7, 2793888), (8, 2444652), (9, 2173024), (12, 1629768), (14, 1396944), (16, 1222326), (18, 1086512), (21, 931296), (24, 814884), (28, 698472), (32, 611163), (36, 543256), (42, 465648), (48, 407442), (56, 349236), (63, 310432), (72, 271628), (84, 232824), (89, 219744), (96, 203721), (109, 179424), (112, 174618), (126, 155216), (144, 135814), (168, 116412), (178, 109872), (218, 89712), (224, 87309), (252, 77608), (267, 73248), (288, 67907), (327, 59808), (336, 58206), (356, 54936), (436, 44856), (504, 38804), (534, 36624), (623, 31392), (654, 29904), (672, 29103), (712, 27468), (763, 25632), (801, 24416), (872, 22428), (981, 19936), (1008, 19402), (1068, 18312), (1246, 15696), (1308, 14952), (1424, 13734), (1526, 12816), (1602, 12208), (1744, 11214), (1869, 10464), (1962, 9968), (2016, 9701), (2136, 9156), (2289, 8544), (2492, 7848), (2616, 7476), (2848, 6867), (3052, 6408), (3204, 6104), (3488, 5607), (3738, 5232), (3924, 4984), (4272, 4578)]