19870754428

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{607}}^1\times {\mathrm{2099}}^1$

素因数の和:3274

約数の個数: 48

約数和(自身を含む): 39897446400

約数和(自身を除く): 20026691972

約数列:

[1, 2, 4, 7, 14, 28, 557, 607, 1114, 1214, 2099, 2228, 2428, 3899, 4198, 4249, 7798, 8396, 8498, 14693, 15596, 16996, 29386, 58772, 338099, 676198, 1169143, 1274093, 1352396, 2338286, 2366693, 2548186, 4676572, 4733386, 5096372, 8184001, 8918651, 9466772, 16368002, 17837302, 32736004, 35674604, 709669801, 1419339602, 2838679204, 4967688607, 9935377214, 19870754428]

約数ペア:

[(1, 19870754428), (2, 9935377214), (4, 4967688607), (7, 2838679204), (14, 1419339602), (28, 709669801), (557, 35674604), (607, 32736004), (1114, 17837302), (1214, 16368002), (2099, 9466772), (2228, 8918651), (2428, 8184001), (3899, 5096372), (4198, 4733386), (4249, 4676572), (7798, 2548186), (8396, 2366693), (8498, 2338286), (14693, 1352396), (15596, 1274093), (16996, 1169143), (29386, 676198), (58772, 338099)]