19009109

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 23442048

約数和(自身を除く): 4432939

約数列:

[1, 7, 23, 49, 101, 161, 167, 707, 1127, 1169, 2323, 3841, 4949, 8183, 16261, 16867, 26887, 113827, 118069, 188209, 387941, 826483, 2715587, 19009109]

約数ペア:

[(1, 19009109), (7, 2715587), (23, 826483), (49, 387941), (101, 188209), (161, 118069), (167, 113827), (707, 26887), (1127, 16867), (1169, 16261), (2323, 8183), (3841, 4949)]