20753778

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 42774336

約数和(自身を除く): 22020558

約数列:

[1, 2, 3, 6, 43, 86, 129, 257, 258, 313, 514, 626, 771, 939, 1542, 1878, 11051, 13459, 22102, 26918, 33153, 40377, 66306, 80441, 80754, 160882, 241323, 482646, 3458963, 6917926, 10376889, 20753778]

約数ペア:

[(1, 20753778), (2, 10376889), (3, 6917926), (6, 3458963), (43, 482646), (86, 241323), (129, 160882), (257, 80754), (258, 80441), (313, 66306), (514, 40377), (626, 33153), (771, 26918), (939, 22102), (1542, 13459), (1878, 11051)]