20315812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12479}}^1$

素因数の和:12531

約数の個数: 24

約数和(自身を含む): 39836160

約数和(自身を除く): 19520348

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12479, 24958, 49916, 137269, 274538, 461723, 549076, 923446, 1846892, 5078953, 10157906, 20315812]

約数ペア:

[(1, 20315812), (2, 10157906), (4, 5078953), (11, 1846892), (22, 923446), (37, 549076), (44, 461723), (74, 274538), (148, 137269), (407, 49916), (814, 24958), (1628, 12479)]