19788505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2833}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 26118144

約数和(自身を除く): 6329639

約数列:

[1, 5, 11, 55, 127, 635, 1397, 2833, 6985, 14165, 31163, 155815, 359791, 1798955, 3957701, 19788505]

約数ペア:

[(1, 19788505), (5, 3957701), (11, 1798955), (55, 359791), (127, 155815), (635, 31163), (1397, 14165), (2833, 6985)]