21619960

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{9161}}^1$

素因数の和:9231

約数の個数: 32

約数和(自身を含む): 49474800

約数和(自身を除く): 27854840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 9161, 18322, 36644, 45805, 73288, 91610, 183220, 366440, 540499, 1080998, 2161996, 2702495, 4323992, 5404990, 10809980, 21619960]

約数ペア:

[(1, 21619960), (2, 10809980), (4, 5404990), (5, 4323992), (8, 2702495), (10, 2161996), (20, 1080998), (40, 540499), (59, 366440), (118, 183220), (236, 91610), (295, 73288), (472, 45805), (590, 36644), (1180, 18322), (2360, 9161)]