63711921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 112250880

約数和(自身を除く): 48538959

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 71, 91, 133, 173, 213, 247, 273, 399, 497, 519, 741, 923, 1211, 1349, 1491, 1729, 2249, 2769, 3287, 3633, 4047, 5187, 6461, 6747, 9443, 9861, 12283, 15743, 17537, 19383, 23009, 28329, 36849, 42731, 47229, 52611, 69027, 85981, 122759, 128193, 159679, 233377, 257943, 299117, 368277, 479037, 700131, 897351, 1117753, 1633639, 3033901, 3353259, 4900917, 9101703, 21237307, 63711921]

約数ペア:

[(1, 63711921), (3, 21237307), (7, 9101703), (13, 4900917), (19, 3353259), (21, 3033901), (39, 1633639), (57, 1117753), (71, 897351), (91, 700131), (133, 479037), (173, 368277), (213, 299117), (247, 257943), (273, 233377), (399, 159679), (497, 128193), (519, 122759), (741, 85981), (923, 69027), (1211, 52611), (1349, 47229), (1491, 42731), (1729, 36849), (2249, 28329), (2769, 23009), (3287, 19383), (3633, 17537), (4047, 15743), (5187, 12283), (6461, 9861), (6747, 9443)]