21511413

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3449}}^1$

素因数の和:3479

約数の個数: 40

約数和(自身を含む): 40075200

約数和(自身を除く): 18563787

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 3449, 6237, 10347, 24143, 31041, 37939, 72429, 93123, 113817, 217287, 265573, 279369, 341451, 651861, 796719, 1024353, 1955583, 2390157, 3073059, 7170471, 21511413]

約数ペア:

[(1, 21511413), (3, 7170471), (7, 3073059), (9, 2390157), (11, 1955583), (21, 1024353), (27, 796719), (33, 651861), (63, 341451), (77, 279369), (81, 265573), (99, 217287), (189, 113817), (231, 93123), (297, 72429), (567, 37939), (693, 31041), (891, 24143), (2079, 10347), (3449, 6237)]