21647964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{919}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 54817280

約数和(自身を除く): 33169316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 151, 156, 302, 453, 604, 906, 919, 1812, 1838, 1963, 2757, 3676, 3926, 5514, 5889, 7852, 11028, 11778, 11947, 23556, 23894, 35841, 47788, 71682, 138769, 143364, 277538, 416307, 555076, 832614, 1665228, 1803997, 3607994, 5411991, 7215988, 10823982, 21647964]

約数ペア:

[(1, 21647964), (2, 10823982), (3, 7215988), (4, 5411991), (6, 3607994), (12, 1803997), (13, 1665228), (26, 832614), (39, 555076), (52, 416307), (78, 277538), (151, 143364), (156, 138769), (302, 71682), (453, 47788), (604, 35841), (906, 23894), (919, 23556), (1812, 11947), (1838, 11778), (1963, 11028), (2757, 7852), (3676, 5889), (3926, 5514)]