21000000621

素因数分解:

$3^1\times {\mathrm{1153}}^1\times {\mathrm{2143}}^1\times {\mathrm{2833}}^1$

素因数の和:6132

約数の個数: 16

約数和(自身を含む): 28047259136

約数和(自身を除く): 7047258515

約数列:

[1, 3, 1153, 2143, 2833, 3459, 6429, 8499, 2470879, 3266449, 6071119, 7412637, 9799347, 18213357, 7000000207, 21000000621]

約数ペア:

[(1, 21000000621), (3, 7000000207), (1153, 18213357), (2143, 9799347), (2833, 7412637), (3459, 6071119), (6429, 3266449), (8499, 2470879)]