20696665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16361}}^1$

素因数の和:16400

約数の個数: 16

約数和(自身を含む): 28273536

約数和(自身を除く): 7576871

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16361, 81805, 179971, 376303, 899855, 1881515, 4139333, 20696665]

約数ペア:

[(1, 20696665), (5, 4139333), (11, 1881515), (23, 899855), (55, 376303), (115, 179971), (253, 81805), (1265, 16361)]