21031171779

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{787}}^1\times {\mathrm{1543}}^1$

素因数の和:2607

約数の個数: 32

約数和(自身を含む): 29433729024

約数和(自身を除く): 8402557245

約数列:

[1, 3, 23, 69, 251, 753, 787, 1543, 2361, 4629, 5773, 17319, 18101, 35489, 54303, 106467, 197537, 387293, 592611, 1161879, 1214341, 3643023, 4543351, 8907739, 13630053, 26723217, 27929843, 83789529, 304799591, 914398773, 7010390593, 21031171779]

約数ペア:

[(1, 21031171779), (3, 7010390593), (23, 914398773), (69, 304799591), (251, 83789529), (753, 27929843), (787, 26723217), (1543, 13630053), (2361, 8907739), (4629, 4543351), (5773, 3643023), (17319, 1214341), (18101, 1161879), (35489, 592611), (54303, 387293), (106467, 197537)]