20177471836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{448907}}^1$

素因数の和:449589

約数の個数: 24

約数和(自身を含む): 37444314096

約数和(自身を除く): 17266842260

約数列:

[1, 2, 4, 17, 34, 68, 661, 1322, 2644, 11237, 22474, 44948, 448907, 897814, 1795628, 7631419, 15262838, 30525676, 296727527, 593455054, 1186910108, 5044367959, 10088735918, 20177471836]

約数ペア:

[(1, 20177471836), (2, 10088735918), (4, 5044367959), (17, 1186910108), (34, 593455054), (68, 296727527), (661, 30525676), (1322, 15262838), (2644, 7631419), (11237, 1795628), (22474, 897814), (44948, 448907)]