18636986

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:434

約数の個数: 24

約数和(自身を含む): 29955744

約数和(自身を除く): 11318758

約数列:

[1, 2, 19, 38, 83, 166, 311, 361, 622, 722, 1577, 3154, 5909, 11818, 25813, 29963, 51626, 59926, 112271, 224542, 490447, 980894, 9318493, 18636986]

約数ペア:

[(1, 18636986), (2, 9318493), (19, 980894), (38, 490447), (83, 224542), (166, 112271), (311, 59926), (361, 51626), (622, 29963), (722, 25813), (1577, 11818), (3154, 5909)]