21072904

素因数分解:

$2^3\times {\mathrm{1619}}^1\times {\mathrm{1627}}^1$

素因数の和:3252

約数の個数: 16

約数和(自身を含む): 39560400

約数和(自身を除く): 18487496

約数列:

[1, 2, 4, 8, 1619, 1627, 3238, 3254, 6476, 6508, 12952, 13016, 2634113, 5268226, 10536452, 21072904]

約数ペア:

[(1, 21072904), (2, 10536452), (4, 5268226), (8, 2634113), (1619, 13016), (1627, 12952), (3238, 6508), (3254, 6476)]