21720006004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{139}}^1\times {\mathrm{1367}}^1$

素因数の和:1609

約数の個数: 72

約数和(自身を含む): 41578608960

約数和(自身を除く): 19858602956

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 139, 164, 278, 556, 697, 1367, 1394, 1681, 2363, 2734, 2788, 3362, 4726, 5468, 5699, 6724, 9452, 11398, 22796, 23239, 28577, 46478, 56047, 57154, 92956, 96883, 112094, 114308, 190013, 193766, 224188, 233659, 380026, 387532, 467318, 760052, 934636, 952799, 1905598, 2297927, 3230221, 3811196, 3972203, 4595854, 6460442, 7790533, 7944406, 9191708, 12920884, 15581066, 15888812, 31162132, 39064759, 78129518, 132439061, 156259036, 264878122, 319411853, 529756244, 638823706, 1277647412, 5430001501, 10860003002, 21720006004]

約数ペア:

[(1, 21720006004), (2, 10860003002), (4, 5430001501), (17, 1277647412), (34, 638823706), (41, 529756244), (68, 319411853), (82, 264878122), (139, 156259036), (164, 132439061), (278, 78129518), (556, 39064759), (697, 31162132), (1367, 15888812), (1394, 15581066), (1681, 12920884), (2363, 9191708), (2734, 7944406), (2788, 7790533), (3362, 6460442), (4726, 4595854), (5468, 3972203), (5699, 3811196), (6724, 3230221), (9452, 2297927), (11398, 1905598), (22796, 952799), (23239, 934636), (28577, 760052), (46478, 467318), (56047, 387532), (57154, 380026), (92956, 233659), (96883, 224188), (112094, 193766), (114308, 190013)]