21138492

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 50585472

約数和(自身を除く): 29446980

約数列:

[1, 2, 3, 4, 6, 12, 101, 107, 163, 202, 214, 303, 321, 326, 404, 428, 489, 606, 642, 652, 978, 1212, 1284, 1956, 10807, 16463, 17441, 21614, 32421, 32926, 34882, 43228, 49389, 52323, 64842, 65852, 69764, 98778, 104646, 129684, 197556, 209292, 1761541, 3523082, 5284623, 7046164, 10569246, 21138492]

約数ペア:

[(1, 21138492), (2, 10569246), (3, 7046164), (4, 5284623), (6, 3523082), (12, 1761541), (101, 209292), (107, 197556), (163, 129684), (202, 104646), (214, 98778), (303, 69764), (321, 65852), (326, 64842), (404, 52323), (428, 49389), (489, 43228), (606, 34882), (642, 32926), (652, 32421), (978, 21614), (1212, 17441), (1284, 16463), (1956, 10807)]