21086548449

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1\times {\mathrm{2003}}^1$

素因数の和:2629

約数の個数: 32

約数和(自身を含む): 28949944320

約数和(自身を除く): 7863395871

約数列:

[1, 3, 47, 141, 197, 379, 591, 1137, 2003, 6009, 9259, 17813, 27777, 53439, 74663, 94141, 223989, 282423, 394591, 759137, 1183773, 2277411, 3509161, 10527483, 18545777, 35679439, 55637331, 107038317, 149549989, 448649967, 7028849483, 21086548449]

約数ペア:

[(1, 21086548449), (3, 7028849483), (47, 448649967), (141, 149549989), (197, 107038317), (379, 55637331), (591, 35679439), (1137, 18545777), (2003, 10527483), (6009, 3509161), (9259, 2277411), (17813, 1183773), (27777, 759137), (53439, 394591), (74663, 282423), (94141, 223989)]