19991568

素因数分解:

$2^4\times 3^1\times {\mathrm{416491}}^1$

素因数の和:416502

約数の個数: 20

約数和(自身を含む): 51645008

約数和(自身を除く): 31653440

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 416491, 832982, 1249473, 1665964, 2498946, 3331928, 4997892, 6663856, 9995784, 19991568]

約数ペア:

[(1, 19991568), (2, 9995784), (3, 6663856), (4, 4997892), (6, 3331928), (8, 2498946), (12, 1665964), (16, 1249473), (24, 832982), (48, 416491)]