19666868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:696

約数の個数: 36

約数和(自身を含む): 38122560

約数和(自身を除く): 18455692

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 169, 188, 338, 611, 619, 676, 1222, 1238, 2444, 2476, 7943, 8047, 15886, 16094, 29093, 31772, 32188, 58186, 104611, 116372, 209222, 378209, 418444, 756418, 1512836, 4916717, 9833434, 19666868]

約数ペア:

[(1, 19666868), (2, 9833434), (4, 4916717), (13, 1512836), (26, 756418), (47, 418444), (52, 378209), (94, 209222), (169, 116372), (188, 104611), (338, 58186), (611, 32188), (619, 31772), (676, 29093), (1222, 16094), (1238, 15886), (2444, 8047), (2476, 7943)]