20976963

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{877}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 34389504

約数和(自身を除く): 13412541

約数列:

[1, 3, 7, 17, 21, 51, 67, 119, 201, 357, 469, 877, 1139, 1407, 2631, 3417, 6139, 7973, 14909, 18417, 23919, 44727, 58759, 104363, 176277, 313089, 411313, 998903, 1233939, 2996709, 6992321, 20976963]

約数ペア:

[(1, 20976963), (3, 6992321), (7, 2996709), (17, 1233939), (21, 998903), (51, 411313), (67, 313089), (119, 176277), (201, 104363), (357, 58759), (469, 44727), (877, 23919), (1139, 18417), (1407, 14909), (2631, 7973), (3417, 6139)]