855428

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 1731072

約数和(自身を除く): 875644

約数列:

[1, 2, 4, 7, 14, 28, 137, 223, 274, 446, 548, 892, 959, 1561, 1918, 3122, 3836, 6244, 30551, 61102, 122204, 213857, 427714, 855428]

約数ペア:

[(1, 855428), (2, 427714), (4, 213857), (7, 122204), (14, 61102), (28, 30551), (137, 6244), (223, 3836), (274, 3122), (446, 1918), (548, 1561), (892, 959)]