19863118

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 32989320

約数和(自身を除く): 13126202

約数列:

[1, 2, 11, 22, 121, 211, 242, 389, 422, 778, 2321, 4279, 4642, 8558, 25531, 47069, 51062, 82079, 94138, 164158, 902869, 1805738, 9931559, 19863118]

約数ペア:

[(1, 19863118), (2, 9931559), (11, 1805738), (22, 902869), (121, 164158), (211, 94138), (242, 82079), (389, 51062), (422, 47069), (778, 25531), (2321, 8558), (4279, 4642)]