19802188

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16447}}^1$

素因数の和:16501

約数の個数: 24

約数和(自身を含む): 40527872

約数和(自身を除く): 20725684

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16447, 32894, 65788, 115129, 230258, 460516, 707221, 1414442, 2828884, 4950547, 9901094, 19802188]

約数ペア:

[(1, 19802188), (2, 9901094), (4, 4950547), (7, 2828884), (14, 1414442), (28, 707221), (43, 460516), (86, 230258), (172, 115129), (301, 65788), (602, 32894), (1204, 16447)]