21037589727

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{701}}^1\times {\mathrm{129917}}^1$

素因数の和:130639

約数の個数: 32

約数和(自身を含む): 35021735424

約数和(自身を除く): 13984145697

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 701, 2103, 4907, 7711, 14721, 23133, 53977, 129917, 161931, 389751, 909419, 1429087, 2728257, 4287261, 10003609, 30010827, 91071817, 273215451, 637502719, 1001789987, 1912508157, 3005369961, 7012529909, 21037589727]

約数ペア:

[(1, 21037589727), (3, 7012529909), (7, 3005369961), (11, 1912508157), (21, 1001789987), (33, 637502719), (77, 273215451), (231, 91071817), (701, 30010827), (2103, 10003609), (4907, 4287261), (7711, 2728257), (14721, 1429087), (23133, 909419), (53977, 389751), (129917, 161931)]