21996351

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11059}}^1$

素因数の和:11095

約数の個数: 24

約数和(自身を含む): 36232560

約数和(自身を除く): 14236209

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 11059, 33177, 99531, 143767, 188003, 431301, 564009, 1293903, 1692027, 2444039, 7332117, 21996351]

約数ペア:

[(1, 21996351), (3, 7332117), (9, 2444039), (13, 1692027), (17, 1293903), (39, 564009), (51, 431301), (117, 188003), (153, 143767), (221, 99531), (663, 33177), (1989, 11059)]