20977803

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30271}}^1$

素因数の和:30295

約数の個数: 24

約数和(自身を含む): 37779456

約数和(自身を除く): 16801653

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30271, 90813, 211897, 272439, 332981, 635691, 998943, 1907073, 2330867, 2996829, 6992601, 20977803]

約数ペア:

[(1, 20977803), (3, 6992601), (7, 2996829), (9, 2330867), (11, 1907073), (21, 998943), (33, 635691), (63, 332981), (77, 272439), (99, 211897), (231, 90813), (693, 30271)]