20585997

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{857}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 31721976

約数和(自身を除く): 11135979

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 857, 1413, 2571, 2669, 7713, 8007, 14569, 24021, 43707, 131121, 134549, 403647, 1210941, 2287333, 6861999, 20585997]

約数ペア:

[(1, 20585997), (3, 6861999), (9, 2287333), (17, 1210941), (51, 403647), (153, 134549), (157, 131121), (471, 43707), (857, 24021), (1413, 14569), (2571, 8007), (2669, 7713)]