81657117

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{613}}^1$

素因数の和:698

約数の個数: 36

約数和(自身を含む): 127727964

約数和(自身を除く): 46070847

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 361, 369, 613, 779, 1083, 1839, 2337, 3249, 5517, 7011, 11647, 14801, 25133, 34941, 44403, 75399, 104823, 133209, 221293, 226197, 477527, 663879, 1432581, 1991637, 4297743, 9073013, 27219039, 81657117]

約数ペア:

[(1, 81657117), (3, 27219039), (9, 9073013), (19, 4297743), (41, 1991637), (57, 1432581), (123, 663879), (171, 477527), (361, 226197), (369, 221293), (613, 133209), (779, 104823), (1083, 75399), (1839, 44403), (2337, 34941), (3249, 25133), (5517, 14801), (7011, 11647)]