19720934

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{1483}}^1$

素因数の和:1655

約数の個数: 16

約数和(自身を含む): 30362640

約数和(自身を除く): 10641706

約数列:

[1, 2, 61, 109, 122, 218, 1483, 2966, 6649, 13298, 90463, 161647, 180926, 323294, 9860467, 19720934]

約数ペア:

[(1, 19720934), (2, 9860467), (61, 323294), (109, 180926), (122, 161647), (218, 90463), (1483, 13298), (2966, 6649)]