18839968

素因数分解:

$2^5\times 7^1\times {\mathrm{151}}^1\times {\mathrm{557}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 23907296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 151, 224, 302, 557, 604, 1057, 1114, 1208, 2114, 2228, 2416, 3899, 4228, 4456, 4832, 7798, 8456, 8912, 15596, 16912, 17824, 31192, 33824, 62384, 84107, 124768, 168214, 336428, 588749, 672856, 1177498, 1345712, 2354996, 2691424, 4709992, 9419984, 18839968]

約数ペア:

[(1, 18839968), (2, 9419984), (4, 4709992), (7, 2691424), (8, 2354996), (14, 1345712), (16, 1177498), (28, 672856), (32, 588749), (56, 336428), (112, 168214), (151, 124768), (224, 84107), (302, 62384), (557, 33824), (604, 31192), (1057, 17824), (1114, 16912), (1208, 15596), (2114, 8912), (2228, 8456), (2416, 7798), (3899, 4832), (4228, 4456)]