21976396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13633}}^1$

素因数の和:13681

約数の個数: 24

約数和(自身を含む): 42756224

約数和(自身を除く): 20779828

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13633, 27266, 54532, 177229, 354458, 422623, 708916, 845246, 1690492, 5494099, 10988198, 21976396]

約数ペア:

[(1, 21976396), (2, 10988198), (4, 5494099), (13, 1690492), (26, 845246), (31, 708916), (52, 422623), (62, 354458), (124, 177229), (403, 54532), (806, 27266), (1612, 13633)]