208506501

素因数分解:

$3^3\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1669}}^1$

素因数の和:2346

約数の個数: 32

約数和(自身を含む): 353772800

約数和(自身を除く): 145266299

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 661, 1669, 1983, 4627, 5007, 5949, 11683, 13881, 15021, 17847, 35049, 41643, 45063, 105147, 124929, 315441, 1103209, 3309627, 7722463, 9928881, 23167389, 29786643, 69502167, 208506501]

約数ペア:

[(1, 208506501), (3, 69502167), (7, 29786643), (9, 23167389), (21, 9928881), (27, 7722463), (63, 3309627), (189, 1103209), (661, 315441), (1669, 124929), (1983, 105147), (4627, 45063), (5007, 41643), (5949, 35049), (11683, 17847), (13881, 15021)]