21530529

素因数分解:

$3^5\times {\mathrm{251}}^1\times {\mathrm{353}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 32471712

約数和(自身を除く): 10941183

約数列:

[1, 3, 9, 27, 81, 243, 251, 353, 753, 1059, 2259, 3177, 6777, 9531, 20331, 28593, 60993, 85779, 88603, 265809, 797427, 2392281, 7176843, 21530529]

約数ペア:

[(1, 21530529), (3, 7176843), (9, 2392281), (27, 797427), (81, 265809), (243, 88603), (251, 85779), (353, 60993), (753, 28593), (1059, 20331), (2259, 9531), (3177, 6777)]