21551145497

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{307}}^1\times {\mathrm{2243}}^1$

素因数の和:2837

約数の個数: 32

約数和(自身を含む): 26274834432

約数和(自身を除く): 4723688935

約数列:

[1, 7, 17, 119, 263, 307, 1841, 2149, 2243, 4471, 5219, 15701, 31297, 36533, 38131, 80741, 266917, 565187, 589909, 688601, 1372597, 4129363, 4820207, 9608179, 10028453, 11706217, 70199171, 81943519, 181102063, 1267714441, 3078735071, 21551145497]

約数ペア:

[(1, 21551145497), (7, 3078735071), (17, 1267714441), (119, 181102063), (263, 81943519), (307, 70199171), (1841, 11706217), (2149, 10028453), (2243, 9608179), (4471, 4820207), (5219, 4129363), (15701, 1372597), (31297, 688601), (36533, 589909), (38131, 565187), (80741, 266917)]