19974795

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 34003200

約数和(自身を除く): 14028405

約数列:

[1, 3, 5, 15, 19, 57, 95, 109, 285, 327, 545, 643, 1635, 1929, 2071, 3215, 6213, 9645, 10355, 12217, 31065, 36651, 61085, 70087, 183255, 210261, 350435, 1051305, 1331653, 3994959, 6658265, 19974795]

約数ペア:

[(1, 19974795), (3, 6658265), (5, 3994959), (15, 1331653), (19, 1051305), (57, 350435), (95, 210261), (109, 183255), (285, 70087), (327, 61085), (545, 36651), (643, 31065), (1635, 12217), (1929, 10355), (2071, 9645), (3215, 6213)]