81861273

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 60

約数和(自身を含む): 140415660

約数和(自身を除く): 58554387

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 269, 289, 351, 459, 663, 807, 867, 1053, 1377, 1989, 2421, 2601, 3497, 3757, 4573, 5967, 7263, 7803, 10491, 11271, 13719, 17901, 21789, 23409, 31473, 33813, 41157, 59449, 77741, 94419, 101439, 123471, 178347, 233223, 283257, 304317, 370413, 535041, 699669, 1010633, 1605123, 2099007, 3031899, 4815369, 6297021, 9095697, 27287091, 81861273]

約数ペア:

[(1, 81861273), (3, 27287091), (9, 9095697), (13, 6297021), (17, 4815369), (27, 3031899), (39, 2099007), (51, 1605123), (81, 1010633), (117, 699669), (153, 535041), (221, 370413), (269, 304317), (289, 283257), (351, 233223), (459, 178347), (663, 123471), (807, 101439), (867, 94419), (1053, 77741), (1377, 59449), (1989, 41157), (2421, 33813), (2601, 31473), (3497, 23409), (3757, 21789), (4573, 17901), (5967, 13719), (7263, 11271), (7803, 10491)]