21319965

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20599}}^1$

素因数の和:20633

約数の個数: 24

約数和(自身を含む): 38563200

約数和(自身を除く): 17243235

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20599, 61797, 102995, 185391, 308985, 473777, 926955, 1421331, 2368885, 4263993, 7106655, 21319965]

約数ペア:

[(1, 21319965), (3, 7106655), (5, 4263993), (9, 2368885), (15, 1421331), (23, 926955), (45, 473777), (69, 308985), (115, 185391), (207, 102995), (345, 61797), (1035, 20599)]