21289872

素因数分解:

$2^4\times 3^1\times {\mathrm{47}}^1\times {\mathrm{9437}}^1$

素因数の和:9495

約数の個数: 40

約数和(自身を含む): 56174976

約数和(自身を除く): 34885104

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 94, 141, 188, 282, 376, 564, 752, 1128, 2256, 9437, 18874, 28311, 37748, 56622, 75496, 113244, 150992, 226488, 443539, 452976, 887078, 1330617, 1774156, 2661234, 3548312, 5322468, 7096624, 10644936, 21289872]

約数ペア:

[(1, 21289872), (2, 10644936), (3, 7096624), (4, 5322468), (6, 3548312), (8, 2661234), (12, 1774156), (16, 1330617), (24, 887078), (47, 452976), (48, 443539), (94, 226488), (141, 150992), (188, 113244), (282, 75496), (376, 56622), (564, 37748), (752, 28311), (1128, 18874), (2256, 9437)]