81236001

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 144506880

約数和(自身を除く): 63270879

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 83, 133, 209, 223, 231, 249, 399, 581, 627, 669, 913, 1463, 1561, 1577, 1743, 2453, 2739, 4237, 4389, 4683, 4731, 6391, 7359, 11039, 12711, 17171, 17347, 18509, 19173, 29659, 33117, 46607, 51513, 52041, 55527, 88977, 121429, 129563, 139821, 203599, 326249, 351671, 364287, 388689, 610797, 978747, 1055013, 1425193, 2461697, 3868381, 4275579, 7385091, 11605143, 27078667, 81236001]

約数ペア:

[(1, 81236001), (3, 27078667), (7, 11605143), (11, 7385091), (19, 4275579), (21, 3868381), (33, 2461697), (57, 1425193), (77, 1055013), (83, 978747), (133, 610797), (209, 388689), (223, 364287), (231, 351671), (249, 326249), (399, 203599), (581, 139821), (627, 129563), (669, 121429), (913, 88977), (1463, 55527), (1561, 52041), (1577, 51513), (1743, 46607), (2453, 33117), (2739, 29659), (4237, 19173), (4389, 18509), (4683, 17347), (4731, 17171), (6391, 12711), (7359, 11039)]