18925245

素因数分解:

$3^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 34394976

約数和(自身を除く): 15469731

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 83, 135, 249, 405, 415, 563, 747, 1245, 1689, 2241, 2815, 3735, 5067, 6723, 8445, 11205, 15201, 25335, 33615, 45603, 46729, 76005, 140187, 228015, 233645, 420561, 700935, 1261683, 2102805, 3785049, 6308415, 18925245]

約数ペア:

[(1, 18925245), (3, 6308415), (5, 3785049), (9, 2102805), (15, 1261683), (27, 700935), (45, 420561), (81, 233645), (83, 228015), (135, 140187), (249, 76005), (405, 46729), (415, 45603), (563, 33615), (747, 25335), (1245, 15201), (1689, 11205), (2241, 8445), (2815, 6723), (3735, 5067)]