81961515

素因数分解:

$3^2\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1753}}^1$

素因数の和:2803

約数の個数: 24

約数和(自身を含む): 142284480

約数和(自身を除く): 60322965

約数列:

[1, 3, 5, 9, 15, 45, 1039, 1753, 3117, 5195, 5259, 8765, 9351, 15585, 15777, 26295, 46755, 78885, 1821367, 5464101, 9106835, 16392303, 27320505, 81961515]

約数ペア:

[(1, 81961515), (3, 27320505), (5, 16392303), (9, 9106835), (15, 5464101), (45, 1821367), (1039, 78885), (1753, 46755), (3117, 26295), (5195, 15777), (5259, 15585), (8765, 9351)]