19720654

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1\times {\mathrm{419}}^1$

素因数の和:755

約数の個数: 16

約数和(自身を含む): 30073680

約数和(自身を除く): 10353026

約数列:

[1, 2, 101, 202, 233, 419, 466, 838, 23533, 42319, 47066, 84638, 97627, 195254, 9860327, 19720654]

約数ペア:

[(1, 19720654), (2, 9860327), (101, 195254), (202, 97627), (233, 84638), (419, 47066), (466, 42319), (838, 23533)]