20253987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{599}}^1$

素因数の和:652

約数の個数: 36

約数和(自身を含む): 33524400

約数和(自身を除く): 13270413

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 289, 599, 663, 867, 1797, 1989, 2601, 3757, 5391, 7787, 10183, 11271, 23361, 30549, 33813, 70083, 91647, 132379, 173111, 397137, 519333, 1191411, 1557999, 2250443, 6751329, 20253987]

約数ペア:

[(1, 20253987), (3, 6751329), (9, 2250443), (13, 1557999), (17, 1191411), (39, 519333), (51, 397137), (117, 173111), (153, 132379), (221, 91647), (289, 70083), (599, 33813), (663, 30549), (867, 23361), (1797, 11271), (1989, 10183), (2601, 7787), (3757, 5391)]