18730138

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 14816102

約数列:

[1, 2, 7, 14, 31, 62, 103, 206, 217, 419, 434, 721, 838, 1442, 2933, 3193, 5866, 6386, 12989, 22351, 25978, 43157, 44702, 86314, 90923, 181846, 302099, 604198, 1337867, 2675734, 9365069, 18730138]

約数ペア:

[(1, 18730138), (2, 9365069), (7, 2675734), (14, 1337867), (31, 604198), (62, 302099), (103, 181846), (206, 90923), (217, 86314), (419, 44702), (434, 43157), (721, 25978), (838, 22351), (1442, 12989), (2933, 6386), (3193, 5866)]