19942853

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 24931800

約数和(自身を除く): 4988947

約数列:

[1, 7, 17, 49, 89, 119, 269, 623, 833, 1513, 1883, 4361, 4573, 10591, 13181, 23941, 32011, 74137, 167587, 224077, 406997, 1173109, 2848979, 19942853]

約数ペア:

[(1, 19942853), (7, 2848979), (17, 1173109), (49, 406997), (89, 224077), (119, 167587), (269, 74137), (623, 32011), (833, 23941), (1513, 13181), (1883, 10591), (4361, 4573)]