400014

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:392

約数の個数: 24

約数和(自身を含む): 881712

約数和(自身を除く): 481698

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 313, 426, 626, 639, 939, 1278, 1878, 2817, 5634, 22223, 44446, 66669, 133338, 200007, 400014]

約数ペア:

[(1, 400014), (2, 200007), (3, 133338), (6, 66669), (9, 44446), (18, 22223), (71, 5634), (142, 2817), (213, 1878), (313, 1278), (426, 939), (626, 639)]