21167177240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{133261}}^1$

素因数の和:133321

約数の個数: 96

約数和(自身を含む): 54834647760

約数和(自身を除く): 33667470520

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 361, 380, 418, 440, 722, 760, 836, 1045, 1444, 1672, 1805, 2090, 2888, 3610, 3971, 4180, 7220, 7942, 8360, 14440, 15884, 19855, 31768, 39710, 79420, 133261, 158840, 266522, 533044, 666305, 1066088, 1332610, 1465871, 2531959, 2665220, 2931742, 5063918, 5330440, 5863484, 7329355, 10127836, 11726968, 12659795, 14658710, 20255672, 25319590, 27851549, 29317420, 48107221, 50639180, 55703098, 58634840, 96214442, 101278360, 111406196, 139257745, 192428884, 222812392, 240536105, 278515490, 384857768, 481072210, 529179431, 557030980, 962144420, 1058358862, 1114061960, 1924288840, 2116717724, 2645897155, 4233435448, 5291794310, 10583588620, 21167177240]

約数ペア:

[(1, 21167177240), (2, 10583588620), (4, 5291794310), (5, 4233435448), (8, 2645897155), (10, 2116717724), (11, 1924288840), (19, 1114061960), (20, 1058358862), (22, 962144420), (38, 557030980), (40, 529179431), (44, 481072210), (55, 384857768), (76, 278515490), (88, 240536105), (95, 222812392), (110, 192428884), (152, 139257745), (190, 111406196), (209, 101278360), (220, 96214442), (361, 58634840), (380, 55703098), (418, 50639180), (440, 48107221), (722, 29317420), (760, 27851549), (836, 25319590), (1045, 20255672), (1444, 14658710), (1672, 12659795), (1805, 11726968), (2090, 10127836), (2888, 7329355), (3610, 5863484), (3971, 5330440), (4180, 5063918), (7220, 2931742), (7942, 2665220), (8360, 2531959), (14440, 1465871), (15884, 1332610), (19855, 1066088), (31768, 666305), (39710, 533044), (79420, 266522), (133261, 158840)]