20831544

素因数分解:

$2^3\times 3^2\times {\mathrm{53}}^2\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 58061640

約数和(自身を除く): 37230096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 53, 72, 103, 106, 159, 206, 212, 309, 318, 412, 424, 477, 618, 636, 824, 927, 954, 1236, 1272, 1854, 1908, 2472, 2809, 3708, 3816, 5459, 5618, 7416, 8427, 10918, 11236, 16377, 16854, 21836, 22472, 25281, 32754, 33708, 43672, 49131, 50562, 65508, 67416, 98262, 101124, 131016, 196524, 202248, 289327, 393048, 578654, 867981, 1157308, 1735962, 2314616, 2603943, 3471924, 5207886, 6943848, 10415772, 20831544]

約数ペア:

[(1, 20831544), (2, 10415772), (3, 6943848), (4, 5207886), (6, 3471924), (8, 2603943), (9, 2314616), (12, 1735962), (18, 1157308), (24, 867981), (36, 578654), (53, 393048), (72, 289327), (103, 202248), (106, 196524), (159, 131016), (206, 101124), (212, 98262), (309, 67416), (318, 65508), (412, 50562), (424, 49131), (477, 43672), (618, 33708), (636, 32754), (824, 25281), (927, 22472), (954, 21836), (1236, 16854), (1272, 16377), (1854, 11236), (1908, 10918), (2472, 8427), (2809, 7416), (3708, 5618), (3816, 5459)]