21822008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 46539360

約数和(自身を除く): 24717352

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 53, 74, 104, 106, 107, 148, 212, 214, 296, 424, 428, 481, 689, 856, 962, 1378, 1391, 1924, 1961, 2756, 2782, 3848, 3922, 3959, 5512, 5564, 5671, 7844, 7918, 11128, 11342, 15688, 15836, 22684, 25493, 31672, 45368, 50986, 51467, 73723, 101972, 102934, 147446, 203944, 205868, 209827, 294892, 411736, 419654, 589784, 839308, 1678616, 2727751, 5455502, 10911004, 21822008]

約数ペア:

[(1, 21822008), (2, 10911004), (4, 5455502), (8, 2727751), (13, 1678616), (26, 839308), (37, 589784), (52, 419654), (53, 411736), (74, 294892), (104, 209827), (106, 205868), (107, 203944), (148, 147446), (212, 102934), (214, 101972), (296, 73723), (424, 51467), (428, 50986), (481, 45368), (689, 31672), (856, 25493), (962, 22684), (1378, 15836), (1391, 15688), (1924, 11342), (1961, 11128), (2756, 7918), (2782, 7844), (3848, 5671), (3922, 5564), (3959, 5512)]