20898213

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12002907

約数列:

[1, 3, 7, 21, 59, 101, 167, 177, 303, 413, 501, 707, 1169, 1239, 2121, 3507, 5959, 9853, 16867, 17877, 29559, 41713, 50601, 68971, 118069, 125139, 206913, 354207, 995153, 2985459, 6966071, 20898213]

約数ペア:

[(1, 20898213), (3, 6966071), (7, 2985459), (21, 995153), (59, 354207), (101, 206913), (167, 125139), (177, 118069), (303, 68971), (413, 50601), (501, 41713), (707, 29559), (1169, 17877), (1239, 16867), (2121, 9853), (3507, 5959)]