21197648

素因数分解:

$2^4\times {\mathrm{947}}^1\times {\mathrm{1399}}^1$

素因数の和:2354

約数の個数: 20

約数和(自身を含む): 41143200

約数和(自身を除く): 19945552

約数列:

[1, 2, 4, 8, 16, 947, 1399, 1894, 2798, 3788, 5596, 7576, 11192, 15152, 22384, 1324853, 2649706, 5299412, 10598824, 21197648]

約数ペア:

[(1, 21197648), (2, 10598824), (4, 5299412), (8, 2649706), (16, 1324853), (947, 22384), (1399, 15152), (1894, 11192), (2798, 7576), (3788, 5596)]