21937708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{439}}^1$

素因数の和:518

約数の個数: 36

約数和(自身を含む): 42818160

約数和(自身を除く): 20880452

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 439, 806, 878, 961, 1612, 1756, 1922, 3844, 5707, 11414, 12493, 13609, 22828, 24986, 27218, 49972, 54436, 176917, 353834, 421879, 707668, 843758, 1687516, 5484427, 10968854, 21937708]

約数ペア:

[(1, 21937708), (2, 10968854), (4, 5484427), (13, 1687516), (26, 843758), (31, 707668), (52, 421879), (62, 353834), (124, 176917), (403, 54436), (439, 49972), (806, 27218), (878, 24986), (961, 22828), (1612, 13609), (1756, 12493), (1922, 11414), (3844, 5707)]