19898778

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 40727232

約数和(自身を除く): 20828454

約数列:

[1, 2, 3, 6, 73, 146, 181, 219, 251, 362, 438, 502, 543, 753, 1086, 1506, 13213, 18323, 26426, 36646, 39639, 45431, 54969, 79278, 90862, 109938, 136293, 272586, 3316463, 6632926, 9949389, 19898778]

約数ペア:

[(1, 19898778), (2, 9949389), (3, 6632926), (6, 3316463), (73, 272586), (146, 136293), (181, 109938), (219, 90862), (251, 79278), (362, 54969), (438, 45431), (502, 39639), (543, 36646), (753, 26426), (1086, 18323), (1506, 13213)]