20417379

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 27848448

約数和(自身を除く): 7431069

約数列:

[1, 3, 67, 157, 201, 471, 647, 1941, 10519, 31557, 43349, 101579, 130047, 304737, 6805793, 20417379]

約数ペア:

[(1, 20417379), (3, 6805793), (67, 304737), (157, 130047), (201, 101579), (471, 43349), (647, 31557), (1941, 10519)]