21017808

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1$

素因数の和:769

約数の個数: 120

約数和(自身を含む): 69638400

約数和(自身を除く): 48620592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 36, 42, 48, 56, 58, 63, 72, 84, 87, 112, 116, 126, 144, 168, 174, 203, 232, 252, 261, 336, 348, 406, 464, 504, 522, 609, 696, 719, 812, 1008, 1044, 1218, 1392, 1438, 1624, 1827, 2088, 2157, 2436, 2876, 3248, 3654, 4176, 4314, 4872, 5033, 5752, 6471, 7308, 8628, 9744, 10066, 11504, 12942, 14616, 15099, 17256, 20132, 20851, 25884, 29232, 30198, 34512, 40264, 41702, 45297, 51768, 60396, 62553, 80528, 83404, 90594, 103536, 120792, 125106, 145957, 166808, 181188, 187659, 241584, 250212, 291914, 333616, 362376, 375318, 437871, 500424, 583828, 724752, 750636, 875742, 1000848, 1167656, 1313613, 1501272, 1751484, 2335312, 2627226, 3002544, 3502968, 5254452, 7005936, 10508904, 21017808]

約数ペア:

[(1, 21017808), (2, 10508904), (3, 7005936), (4, 5254452), (6, 3502968), (7, 3002544), (8, 2627226), (9, 2335312), (12, 1751484), (14, 1501272), (16, 1313613), (18, 1167656), (21, 1000848), (24, 875742), (28, 750636), (29, 724752), (36, 583828), (42, 500424), (48, 437871), (56, 375318), (58, 362376), (63, 333616), (72, 291914), (84, 250212), (87, 241584), (112, 187659), (116, 181188), (126, 166808), (144, 145957), (168, 125106), (174, 120792), (203, 103536), (232, 90594), (252, 83404), (261, 80528), (336, 62553), (348, 60396), (406, 51768), (464, 45297), (504, 41702), (522, 40264), (609, 34512), (696, 30198), (719, 29232), (812, 25884), (1008, 20851), (1044, 20132), (1218, 17256), (1392, 15099), (1438, 14616), (1624, 12942), (1827, 11504), (2088, 10066), (2157, 9744), (2436, 8628), (2876, 7308), (3248, 6471), (3654, 5752), (4176, 5033), (4314, 4872)]