21895588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 45581760

約数和(自身を除く): 23686172

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 101, 143, 202, 286, 379, 404, 572, 758, 1111, 1313, 1516, 2222, 2626, 4169, 4444, 4927, 5252, 8338, 9854, 14443, 16676, 19708, 28886, 38279, 54197, 57772, 76558, 108394, 153116, 216788, 421069, 497627, 842138, 995254, 1684276, 1990508, 5473897, 10947794, 21895588]

約数ペア:

[(1, 21895588), (2, 10947794), (4, 5473897), (11, 1990508), (13, 1684276), (22, 995254), (26, 842138), (44, 497627), (52, 421069), (101, 216788), (143, 153116), (202, 108394), (286, 76558), (379, 57772), (404, 54197), (572, 38279), (758, 28886), (1111, 19708), (1313, 16676), (1516, 14443), (2222, 9854), (2626, 8338), (4169, 5252), (4444, 4927)]