21485091

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 29321600

約数和(自身を除く): 7836509

約数列:

[1, 3, 67, 139, 201, 417, 769, 2307, 9313, 27939, 51523, 106891, 154569, 320673, 7161697, 21485091]

約数ペア:

[(1, 21485091), (3, 7161697), (67, 320673), (139, 154569), (201, 106891), (417, 51523), (769, 27939), (2307, 9313)]