20801778

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1871}}^1$

素因数の和:2002

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 23676942

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 109, 218, 327, 654, 1853, 1871, 3706, 3742, 5559, 5613, 11118, 11226, 31807, 63614, 95421, 190842, 203939, 407878, 611817, 1223634, 3466963, 6933926, 10400889, 20801778]

約数ペア:

[(1, 20801778), (2, 10400889), (3, 6933926), (6, 3466963), (17, 1223634), (34, 611817), (51, 407878), (102, 203939), (109, 190842), (218, 95421), (327, 63614), (654, 31807), (1853, 11226), (1871, 11118), (3706, 5613), (3742, 5559)]