21500976

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 42780624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 89, 112, 168, 178, 267, 336, 356, 534, 623, 712, 719, 1068, 1246, 1424, 1438, 1869, 2136, 2157, 2492, 2876, 3738, 4272, 4314, 4984, 5033, 5752, 7476, 8628, 9968, 10066, 11504, 14952, 15099, 17256, 20132, 29904, 30198, 34512, 40264, 60396, 63991, 80528, 120792, 127982, 191973, 241584, 255964, 383946, 447937, 511928, 767892, 895874, 1023856, 1343811, 1535784, 1791748, 2687622, 3071568, 3583496, 5375244, 7166992, 10750488, 21500976]

約数ペア:

[(1, 21500976), (2, 10750488), (3, 7166992), (4, 5375244), (6, 3583496), (7, 3071568), (8, 2687622), (12, 1791748), (14, 1535784), (16, 1343811), (21, 1023856), (24, 895874), (28, 767892), (42, 511928), (48, 447937), (56, 383946), (84, 255964), (89, 241584), (112, 191973), (168, 127982), (178, 120792), (267, 80528), (336, 63991), (356, 60396), (534, 40264), (623, 34512), (712, 30198), (719, 29904), (1068, 20132), (1246, 17256), (1424, 15099), (1438, 14952), (1869, 11504), (2136, 10066), (2157, 9968), (2492, 8628), (2876, 7476), (3738, 5752), (4272, 5033), (4314, 4984)]