21656968

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{337}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 42283800

約数和(自身を除く): 20626832

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 277, 337, 554, 674, 1108, 1348, 2216, 2696, 8033, 9773, 16066, 19546, 32132, 39092, 64264, 78184, 93349, 186698, 373396, 746792, 2707121, 5414242, 10828484, 21656968]

約数ペア:

[(1, 21656968), (2, 10828484), (4, 5414242), (8, 2707121), (29, 746792), (58, 373396), (116, 186698), (232, 93349), (277, 78184), (337, 64264), (554, 39092), (674, 32132), (1108, 19546), (1348, 16066), (2216, 9773), (2696, 8033)]