21250124

素因数分解:

$2^2\times 7^2\times {\mathrm{181}}^1\times {\mathrm{599}}^1$

素因数の和:798

約数の個数: 36

約数和(自身を含む): 43570800

約数和(自身を除く): 22320676

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 181, 196, 362, 599, 724, 1198, 1267, 2396, 2534, 4193, 5068, 8386, 8869, 16772, 17738, 29351, 35476, 58702, 108419, 117404, 216838, 433676, 758933, 1517866, 3035732, 5312531, 10625062, 21250124]

約数ペア:

[(1, 21250124), (2, 10625062), (4, 5312531), (7, 3035732), (14, 1517866), (28, 758933), (49, 433676), (98, 216838), (181, 117404), (196, 108419), (362, 58702), (599, 35476), (724, 29351), (1198, 17738), (1267, 16772), (2396, 8869), (2534, 8386), (4193, 5068)]