18863105

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6538495

約数列:

[1, 5, 19, 23, 89, 95, 97, 115, 437, 445, 485, 1691, 1843, 2047, 2185, 2231, 8455, 8633, 9215, 10235, 11155, 38893, 42389, 43165, 164027, 194465, 198559, 211945, 820135, 992795, 3772621, 18863105]

約数ペア:

[(1, 18863105), (5, 3772621), (19, 992795), (23, 820135), (89, 211945), (95, 198559), (97, 194465), (115, 164027), (437, 43165), (445, 42389), (485, 38893), (1691, 11155), (1843, 10235), (2047, 9215), (2185, 8633), (2231, 8455)]