1999115972

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2303129}}^1$

素因数の和:2303171

約数の個数: 24

約数和(自身を含む): 4127208960

約数和(自身を除く): 2128092988

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 2303129, 4606258, 9212516, 16121903, 32243806, 64487612, 71396999, 142793998, 285587996, 499778993, 999557986, 1999115972]

約数ペア:

[(1, 1999115972), (2, 999557986), (4, 499778993), (7, 285587996), (14, 142793998), (28, 71396999), (31, 64487612), (62, 32243806), (124, 16121903), (217, 9212516), (434, 4606258), (868, 2303129)]