19635824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1409}}^1$

素因数の和:1497

約数の個数: 40

約数和(自身を含む): 41611920

約数和(自身を除く): 21976096

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1409, 1742, 2818, 3484, 5636, 6968, 11272, 13936, 18317, 22544, 36634, 73268, 94403, 146536, 188806, 293072, 377612, 755224, 1227239, 1510448, 2454478, 4908956, 9817912, 19635824]

約数ペア:

[(1, 19635824), (2, 9817912), (4, 4908956), (8, 2454478), (13, 1510448), (16, 1227239), (26, 755224), (52, 377612), (67, 293072), (104, 188806), (134, 146536), (208, 94403), (268, 73268), (536, 36634), (871, 22544), (1072, 18317), (1409, 13936), (1742, 11272), (2818, 6968), (3484, 5636)]