21972585

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 15525015

約数列:

[1, 3, 5, 15, 17, 51, 85, 199, 255, 433, 597, 995, 1299, 2165, 2985, 3383, 6495, 7361, 10149, 16915, 22083, 36805, 50745, 86167, 110415, 258501, 430835, 1292505, 1464839, 4394517, 7324195, 21972585]

約数ペア:

[(1, 21972585), (3, 7324195), (5, 4394517), (15, 1464839), (17, 1292505), (51, 430835), (85, 258501), (199, 110415), (255, 86167), (433, 50745), (597, 36805), (995, 22083), (1299, 16915), (2165, 10149), (2985, 7361), (3383, 6495)]