21930244

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2729}}^1$

素因数の和:2788

約数の個数: 36

約数和(自身を含む): 45749340

約数和(自身を除く): 23819096

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 2729, 4018, 5458, 8036, 10916, 19103, 38206, 76412, 111889, 133721, 223778, 267442, 447556, 534884, 783223, 1566446, 3132892, 5482561, 10965122, 21930244]

約数ペア:

[(1, 21930244), (2, 10965122), (4, 5482561), (7, 3132892), (14, 1566446), (28, 783223), (41, 534884), (49, 447556), (82, 267442), (98, 223778), (164, 133721), (196, 111889), (287, 76412), (574, 38206), (1148, 19103), (2009, 10916), (2729, 8036), (4018, 5458)]