81447813

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{7109}}^1$

素因数の和:7201

約数の個数: 24

約数和(自身を含む): 125704800

約数和(自身を除く): 44256987

約数列:

[1, 3, 9, 19, 57, 67, 171, 201, 603, 1273, 3819, 7109, 11457, 21327, 63981, 135071, 405213, 476303, 1215639, 1428909, 4286727, 9049757, 27149271, 81447813]

約数ペア:

[(1, 81447813), (3, 27149271), (9, 9049757), (19, 4286727), (57, 1428909), (67, 1215639), (171, 476303), (201, 405213), (603, 135071), (1273, 63981), (3819, 21327), (7109, 11457)]