18227601

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^2\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 30966208

約数和(自身を除く): 12738607

約数列:

[1, 3, 7, 9, 21, 53, 63, 103, 159, 309, 371, 477, 721, 927, 1113, 2163, 2809, 3339, 5459, 6489, 8427, 16377, 19663, 25281, 38213, 49131, 58989, 114639, 176967, 289327, 343917, 867981, 2025289, 2603943, 6075867, 18227601]

約数ペア:

[(1, 18227601), (3, 6075867), (7, 2603943), (9, 2025289), (21, 867981), (53, 343917), (63, 289327), (103, 176967), (159, 114639), (309, 58989), (371, 49131), (477, 38213), (721, 25281), (927, 19663), (1113, 16377), (2163, 8427), (2809, 6489), (3339, 5459)]