261952807431

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1\times {\mathrm{20479}}^1$

素因数の和:20956

約数の個数: 64

約数和(自身を含む): 423540817920

約数和(自身を除く): 161588010489

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 373, 483, 497, 1119, 1491, 1633, 2611, 4899, 7833, 8579, 11431, 20479, 25737, 26483, 34293, 60053, 61437, 79449, 143353, 180159, 185381, 430059, 471017, 556143, 609109, 1413051, 1454009, 1827327, 3297119, 4263763, 4362027, 7638667, 9891357, 10178063, 12791289, 22916001, 30534189, 33442207, 53470669, 100326621, 160412007, 175689341, 234095449, 527068023, 542345357, 702286347, 1229825387, 1627036071, 3689476161, 3796417499, 11389252497, 12473943211, 37421829633, 87317602477, 261952807431]

約数ペア:

[(1, 261952807431), (3, 87317602477), (7, 37421829633), (21, 12473943211), (23, 11389252497), (69, 3796417499), (71, 3689476161), (161, 1627036071), (213, 1229825387), (373, 702286347), (483, 542345357), (497, 527068023), (1119, 234095449), (1491, 175689341), (1633, 160412007), (2611, 100326621), (4899, 53470669), (7833, 33442207), (8579, 30534189), (11431, 22916001), (20479, 12791289), (25737, 10178063), (26483, 9891357), (34293, 7638667), (60053, 4362027), (61437, 4263763), (79449, 3297119), (143353, 1827327), (180159, 1454009), (185381, 1413051), (430059, 609109), (471017, 556143)]