21406462

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{607}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 18867458

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 229, 458, 607, 1214, 1603, 2519, 3206, 4249, 5038, 6677, 8498, 13354, 17633, 35266, 46739, 93478, 139003, 278006, 973021, 1529033, 1946042, 3058066, 10703231, 21406462]

約数ペア:

[(1, 21406462), (2, 10703231), (7, 3058066), (11, 1946042), (14, 1529033), (22, 973021), (77, 278006), (154, 139003), (229, 93478), (458, 46739), (607, 35266), (1214, 17633), (1603, 13354), (2519, 8498), (3206, 6677), (4249, 5038)]