19889235

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25999}}^1$

素因数の和:26027

約数の個数: 24

約数和(自身を含む): 36504000

約数和(自身を除く): 16614765

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 25999, 77997, 129995, 233991, 389985, 441983, 1169955, 1325949, 2209915, 3977847, 6629745, 19889235]

約数ペア:

[(1, 19889235), (3, 6629745), (5, 3977847), (9, 2209915), (15, 1325949), (17, 1169955), (45, 441983), (51, 389985), (85, 233991), (153, 129995), (255, 77997), (765, 25999)]