19874738

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{463}}^1$

素因数の和:618

約数の個数: 24

約数和(自身を含む): 32606208

約数和(自身を除く): 12731470

約数列:

[1, 2, 13, 26, 127, 169, 254, 338, 463, 926, 1651, 3302, 6019, 12038, 21463, 42926, 58801, 78247, 117602, 156494, 764413, 1528826, 9937369, 19874738]

約数ペア:

[(1, 19874738), (2, 9937369), (13, 1528826), (26, 764413), (127, 156494), (169, 117602), (254, 78247), (338, 58801), (463, 42926), (926, 21463), (1651, 12038), (3302, 6019)]