21850212

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 52920000

約数和(自身を除く): 31069788

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 89, 123, 164, 178, 246, 267, 356, 492, 499, 534, 998, 1068, 1497, 1996, 2994, 3649, 5988, 7298, 10947, 14596, 20459, 21894, 40918, 43788, 44411, 61377, 81836, 88822, 122754, 133233, 177644, 245508, 266466, 532932, 1820851, 3641702, 5462553, 7283404, 10925106, 21850212]

約数ペア:

[(1, 21850212), (2, 10925106), (3, 7283404), (4, 5462553), (6, 3641702), (12, 1820851), (41, 532932), (82, 266466), (89, 245508), (123, 177644), (164, 133233), (178, 122754), (246, 88822), (267, 81836), (356, 61377), (492, 44411), (499, 43788), (534, 40918), (998, 21894), (1068, 20459), (1497, 14596), (1996, 10947), (2994, 7298), (3649, 5988)]