20439304

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 40911480

約数和(自身を除く): 20472176

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 137, 274, 548, 1096, 1097, 2194, 2329, 4388, 4658, 8776, 9316, 18632, 18649, 37298, 74596, 149192, 150289, 300578, 601156, 1202312, 2554913, 5109826, 10219652, 20439304]

約数ペア:

[(1, 20439304), (2, 10219652), (4, 5109826), (8, 2554913), (17, 1202312), (34, 601156), (68, 300578), (136, 150289), (137, 149192), (274, 74596), (548, 37298), (1096, 18649), (1097, 18632), (2194, 9316), (2329, 8776), (4388, 4658)]