21691514878

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{251}}^1\times {\mathrm{357109}}^1$

素因数の和:357384

約数の個数: 24

約数和(自身を含む): 35906696280

約数和(自身を除く): 14215181402

約数列:

[1, 2, 11, 22, 121, 242, 251, 502, 2761, 5522, 30371, 60742, 357109, 714218, 3928199, 7856398, 43210189, 86420378, 89634359, 179268718, 985977949, 1971955898, 10845757439, 21691514878]

約数ペア:

[(1, 21691514878), (2, 10845757439), (11, 1971955898), (22, 985977949), (121, 179268718), (242, 89634359), (251, 86420378), (502, 43210189), (2761, 7856398), (5522, 3928199), (30371, 714218), (60742, 357109)]