21704332

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:458

約数の個数: 36

約数和(自身を含む): 41678616

約数和(自身を除く): 19974284

約数列:

[1, 2, 4, 13, 26, 52, 97, 169, 194, 331, 338, 388, 662, 676, 1261, 1324, 2522, 4303, 5044, 8606, 16393, 17212, 32107, 32786, 55939, 64214, 65572, 111878, 128428, 223756, 417391, 834782, 1669564, 5426083, 10852166, 21704332]

約数ペア:

[(1, 21704332), (2, 10852166), (4, 5426083), (13, 1669564), (26, 834782), (52, 417391), (97, 223756), (169, 128428), (194, 111878), (331, 65572), (338, 64214), (388, 55939), (662, 32786), (676, 32107), (1261, 17212), (1324, 16393), (2522, 8606), (4303, 5044)]