668839383

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 1063756800

約数和(自身を除く): 394917417

約数列:

[1, 3, 9, 27, 29, 53, 71, 87, 159, 213, 227, 261, 477, 639, 681, 783, 1431, 1537, 1917, 2043, 2059, 3763, 4611, 6129, 6177, 6583, 11289, 12031, 13833, 16117, 18531, 19749, 33867, 36093, 41499, 48351, 55593, 59247, 101601, 108279, 109127, 145053, 177741, 324837, 327381, 348899, 435159, 467393, 854201, 982143, 1046697, 1402179, 2562603, 2946429, 3140091, 4206537, 7687809, 9420273, 12619611, 23063427, 24771829, 74315487, 222946461, 668839383]

約数ペア:

[(1, 668839383), (3, 222946461), (9, 74315487), (27, 24771829), (29, 23063427), (53, 12619611), (71, 9420273), (87, 7687809), (159, 4206537), (213, 3140091), (227, 2946429), (261, 2562603), (477, 1402179), (639, 1046697), (681, 982143), (783, 854201), (1431, 467393), (1537, 435159), (1917, 348899), (2043, 327381), (2059, 324837), (3763, 177741), (4611, 145053), (6129, 109127), (6177, 108279), (6583, 101601), (11289, 59247), (12031, 55593), (13833, 48351), (16117, 41499), (18531, 36093), (19749, 33867)]