660778857

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{11783}}^1$

素因数の和:11890

約数の個数: 32

約数和(自身を含む): 1025679360

約数和(自身を除く): 364900503

約数列:

[1, 3, 9, 27, 31, 67, 93, 201, 279, 603, 837, 1809, 2077, 6231, 11783, 18693, 35349, 56079, 106047, 318141, 365273, 789461, 1095819, 2368383, 3287457, 7105149, 9862371, 21315447, 24473291, 73419873, 220259619, 660778857]

約数ペア:

[(1, 660778857), (3, 220259619), (9, 73419873), (27, 24473291), (31, 21315447), (67, 9862371), (93, 7105149), (201, 3287457), (279, 2368383), (603, 1095819), (837, 789461), (1809, 365273), (2077, 318141), (6231, 106047), (11783, 56079), (18693, 35349)]