19712909181

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{272011}}^1$

素因数の和:272074

約数の個数: 48

約数和(自身を含む): 33490117440

約数和(自身を除く): 13777208259

約数列:

[1, 3, 7, 17, 21, 29, 49, 51, 87, 119, 147, 203, 357, 493, 609, 833, 1421, 1479, 2499, 3451, 4263, 10353, 24157, 72471, 272011, 816033, 1904077, 4624187, 5712231, 7888319, 13328539, 13872561, 23664957, 32369309, 39985617, 55218233, 97107927, 134101423, 165654699, 226585163, 386527631, 402304269, 679755489, 938709961, 1159582893, 2816129883, 6570969727, 19712909181]

約数ペア:

[(1, 19712909181), (3, 6570969727), (7, 2816129883), (17, 1159582893), (21, 938709961), (29, 679755489), (49, 402304269), (51, 386527631), (87, 226585163), (119, 165654699), (147, 134101423), (203, 97107927), (357, 55218233), (493, 39985617), (609, 32369309), (833, 23664957), (1421, 13872561), (1479, 13328539), (2499, 7888319), (3451, 5712231), (4263, 4624187), (10353, 1904077), (24157, 816033), (72471, 272011)]