21380576

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3079}}^1$

素因数の和:3127

約数の個数: 48

約数和(自身を含む): 49674240

約数和(自身を除く): 28293664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3079, 3472, 6158, 6944, 12316, 21553, 24632, 43106, 49264, 86212, 95449, 98528, 172424, 190898, 344848, 381796, 668143, 689696, 763592, 1336286, 1527184, 2672572, 3054368, 5345144, 10690288, 21380576]

約数ペア:

[(1, 21380576), (2, 10690288), (4, 5345144), (7, 3054368), (8, 2672572), (14, 1527184), (16, 1336286), (28, 763592), (31, 689696), (32, 668143), (56, 381796), (62, 344848), (112, 190898), (124, 172424), (217, 98528), (224, 95449), (248, 86212), (434, 49264), (496, 43106), (868, 24632), (992, 21553), (1736, 12316), (3079, 6944), (3472, 6158)]