19808421

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{1021}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 27471360

約数和(自身を除く): 7662939

約数列:

[1, 3, 29, 87, 223, 669, 1021, 3063, 6467, 19401, 29609, 88827, 227683, 683049, 6602807, 19808421]

約数ペア:

[(1, 19808421), (3, 6602807), (29, 683049), (87, 227683), (223, 88827), (669, 29609), (1021, 19401), (3063, 6467)]