21228087

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 10843593

約数列:

[1, 3, 17, 29, 31, 51, 87, 93, 463, 493, 527, 899, 1389, 1479, 1581, 2697, 7871, 13427, 14353, 15283, 23613, 40281, 43059, 45849, 228259, 244001, 416237, 684777, 732003, 1248711, 7076029, 21228087]

約数ペア:

[(1, 21228087), (3, 7076029), (17, 1248711), (29, 732003), (31, 684777), (51, 416237), (87, 244001), (93, 228259), (463, 45849), (493, 43059), (527, 40281), (899, 23613), (1389, 15283), (1479, 14353), (1581, 13427), (2697, 7871)]