21963501

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1471}}^1$

素因数の和:1566

約数の個数: 32

約数和(自身を含む): 37683200

約数和(自身を除く): 15719699

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 189, 237, 553, 711, 1471, 1659, 2133, 4413, 4977, 10297, 13239, 14931, 30891, 39717, 92673, 116209, 278019, 348627, 813463, 1045881, 2440389, 3137643, 7321167, 21963501]

約数ペア:

[(1, 21963501), (3, 7321167), (7, 3137643), (9, 2440389), (21, 1045881), (27, 813463), (63, 348627), (79, 278019), (189, 116209), (237, 92673), (553, 39717), (711, 30891), (1471, 14931), (1659, 13239), (2133, 10297), (4413, 4977)]