21146085

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20431}}^1$

素因数の和:20465

約数の個数: 24

約数和(自身を含む): 38248704

約数和(自身を除く): 17102619

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20431, 61293, 102155, 183879, 306465, 469913, 919395, 1409739, 2349565, 4229217, 7048695, 21146085]

約数ペア:

[(1, 21146085), (3, 7048695), (5, 4229217), (9, 2349565), (15, 1409739), (23, 919395), (45, 469913), (69, 306465), (115, 183879), (207, 102155), (345, 61293), (1035, 20431)]