20399778847

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{618869}}^1$

素因数の和:619170

約数の個数: 16

約数和(自身を含む): 24774603840

約数和(自身を除く): 4374824993

約数列:

[1, 7, 17, 119, 277, 1939, 4709, 32963, 618869, 4332083, 10520773, 73645411, 171426713, 1199986991, 2914254121, 20399778847]

約数ペア:

[(1, 20399778847), (7, 2914254121), (17, 1199986991), (119, 171426713), (277, 73645411), (1939, 10520773), (4709, 4332083), (32963, 618869)]