20211688

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8803}}^1$

素因数の和:8857

約数の個数: 32

約数和(自身を含む): 44372160

約数和(自身を除く): 24160472

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 8803, 17606, 35212, 61621, 70424, 123242, 246484, 360923, 492968, 721846, 1443692, 2526461, 2887384, 5052922, 10105844, 20211688]

約数ペア:

[(1, 20211688), (2, 10105844), (4, 5052922), (7, 2887384), (8, 2526461), (14, 1443692), (28, 721846), (41, 492968), (56, 360923), (82, 246484), (164, 123242), (287, 70424), (328, 61621), (574, 35212), (1148, 17606), (2296, 8803)]