21511496

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1459}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 42924000

約数和(自身を除く): 21412504

約数列:

[1, 2, 4, 8, 19, 38, 76, 97, 152, 194, 388, 776, 1459, 1843, 2918, 3686, 5836, 7372, 11672, 14744, 27721, 55442, 110884, 141523, 221768, 283046, 566092, 1132184, 2688937, 5377874, 10755748, 21511496]

約数ペア:

[(1, 21511496), (2, 10755748), (4, 5377874), (8, 2688937), (19, 1132184), (38, 566092), (76, 283046), (97, 221768), (152, 141523), (194, 110884), (388, 55442), (776, 27721), (1459, 14744), (1843, 11672), (2918, 7372), (3686, 5836)]