21408528

素因数分解:

$2^4\times 3^1\times {\mathrm{113}}^1\times {\mathrm{3947}}^1$

素因数の和:4071

約数の個数: 40

約数和(自身を含む): 55808928

約数和(自身を除く): 34400400

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 113, 226, 339, 452, 678, 904, 1356, 1808, 2712, 3947, 5424, 7894, 11841, 15788, 23682, 31576, 47364, 63152, 94728, 189456, 446011, 892022, 1338033, 1784044, 2676066, 3568088, 5352132, 7136176, 10704264, 21408528]

約数ペア:

[(1, 21408528), (2, 10704264), (3, 7136176), (4, 5352132), (6, 3568088), (8, 2676066), (12, 1784044), (16, 1338033), (24, 892022), (48, 446011), (113, 189456), (226, 94728), (339, 63152), (452, 47364), (678, 31576), (904, 23682), (1356, 15788), (1808, 11841), (2712, 7894), (3947, 5424)]