21042016

素因数分解:

$2^5\times {\mathrm{97}}^1\times {\mathrm{6779}}^1$

素因数の和:6886

約数の個数: 24

約数和(自身を含む): 41859720

約数和(自身を除く): 20817704

約数列:

[1, 2, 4, 8, 16, 32, 97, 194, 388, 776, 1552, 3104, 6779, 13558, 27116, 54232, 108464, 216928, 657563, 1315126, 2630252, 5260504, 10521008, 21042016]

約数ペア:

[(1, 21042016), (2, 10521008), (4, 5260504), (8, 2630252), (16, 1315126), (32, 657563), (97, 216928), (194, 108464), (388, 54232), (776, 27116), (1552, 13558), (3104, 6779)]