639366957

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 1008596160

約数和(自身を除く): 369229203

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 157, 387, 471, 619, 731, 1413, 1857, 2193, 2669, 5571, 6579, 6751, 8007, 10523, 20253, 24021, 26617, 31569, 60759, 79851, 94707, 97183, 114767, 239553, 291549, 344301, 452489, 874647, 1032903, 1357467, 1652111, 4072401, 4178869, 4956333, 12536607, 14868999, 37609821, 71040773, 213122319, 639366957]

約数ペア:

[(1, 639366957), (3, 213122319), (9, 71040773), (17, 37609821), (43, 14868999), (51, 12536607), (129, 4956333), (153, 4178869), (157, 4072401), (387, 1652111), (471, 1357467), (619, 1032903), (731, 874647), (1413, 452489), (1857, 344301), (2193, 291549), (2669, 239553), (5571, 114767), (6579, 97183), (6751, 94707), (8007, 79851), (10523, 60759), (20253, 31569), (24021, 26617)]