20899846

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1380

約数の個数: 24

約数和(自身を含む): 35000280

約数和(自身を除く): 14100434

約数列:

[1, 2, 11, 22, 67, 121, 134, 242, 737, 1289, 1474, 2578, 8107, 14179, 16214, 28358, 86363, 155969, 172726, 311938, 949993, 1899986, 10449923, 20899846]

約数ペア:

[(1, 20899846), (2, 10449923), (11, 1899986), (22, 949993), (67, 311938), (121, 172726), (134, 155969), (242, 86363), (737, 28358), (1289, 16214), (1474, 14179), (2578, 8107)]