19589648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1777}}^1$

素因数の和:1851

約数の個数: 40

約数和(自身を含む): 41669208

約数和(自身を除く): 22079560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1777, 2756, 3554, 5512, 7108, 11024, 14216, 23101, 28432, 46202, 92404, 94181, 184808, 188362, 369616, 376724, 753448, 1224353, 1506896, 2448706, 4897412, 9794824, 19589648]

約数ペア:

[(1, 19589648), (2, 9794824), (4, 4897412), (8, 2448706), (13, 1506896), (16, 1224353), (26, 753448), (52, 376724), (53, 369616), (104, 188362), (106, 184808), (208, 94181), (212, 92404), (424, 46202), (689, 28432), (848, 23101), (1378, 14216), (1777, 11024), (2756, 7108), (3554, 5512)]