19834885

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 28514304

約数和(自身を除く): 8679419

約数列:

[1, 5, 7, 31, 35, 101, 155, 181, 217, 505, 707, 905, 1085, 1267, 3131, 3535, 5611, 6335, 15655, 18281, 21917, 28055, 39277, 91405, 109585, 127967, 196385, 566711, 639835, 2833555, 3966977, 19834885]

約数ペア:

[(1, 19834885), (5, 3966977), (7, 2833555), (31, 639835), (35, 566711), (101, 196385), (155, 127967), (181, 109585), (217, 91405), (505, 39277), (707, 28055), (905, 21917), (1085, 18281), (1267, 15655), (3131, 6335), (3535, 5611)]