21000608657

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{9697}}^1\times {\mathrm{18199}}^1$

素因数の和:27920

約数の個数: 16

約数和(自身を含む): 25416518400

約数和(自身を除く): 4415909743

約数列:

[1, 7, 17, 119, 9697, 18199, 67879, 127393, 164849, 309383, 1153943, 2165681, 176475703, 1235329921, 3000086951, 21000608657]

約数ペア:

[(1, 21000608657), (7, 3000086951), (17, 1235329921), (119, 176475703), (9697, 2165681), (18199, 1153943), (67879, 309383), (127393, 164849)]