20004663

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 32381440

約数和(自身を除く): 12376777

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 277, 399, 543, 831, 1267, 1939, 3439, 3801, 5263, 5817, 10317, 15789, 24073, 36841, 50137, 72219, 110523, 150411, 350959, 952603, 1052877, 2857809, 6668221, 20004663]

約数ペア:

[(1, 20004663), (3, 6668221), (7, 2857809), (19, 1052877), (21, 952603), (57, 350959), (133, 150411), (181, 110523), (277, 72219), (399, 50137), (543, 36841), (831, 24073), (1267, 15789), (1939, 10317), (3439, 5817), (3801, 5263)]