20802355847

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 28650737664

約数和(自身を除く): 7848381817

約数列:

[1, 7, 13, 17, 31, 61, 91, 119, 169, 217, 221, 403, 427, 527, 547, 793, 1037, 1183, 1547, 1891, 2821, 2873, 3689, 3829, 5239, 5551, 6851, 7111, 7259, 9299, 10309, 13237, 13481, 16957, 20111, 24583, 32147, 33367, 36673, 47957, 49777, 65093, 72163, 89063, 92443, 94367, 118699, 120887, 172081, 175253, 220441, 225029, 233569, 288269, 319579, 417911, 433771, 567239, 623441, 647101, 846209, 1034377, 1226771, 1543087, 1571531, 2017883, 2237053, 2865733, 2925377, 3036397, 3747497, 3970673, 5432843, 5639023, 7240639, 7374107, 11000717, 13446901, 17584409, 20060131, 26232479, 38029901, 39473161, 48717461, 51618749, 94128307, 95863391, 123090863, 174809713, 228597317, 341022227, 671043737, 1223667991, 1600181219, 2971765121, 20802355847]

約数ペア:

[(1, 20802355847), (7, 2971765121), (13, 1600181219), (17, 1223667991), (31, 671043737), (61, 341022227), (91, 228597317), (119, 174809713), (169, 123090863), (217, 95863391), (221, 94128307), (403, 51618749), (427, 48717461), (527, 39473161), (547, 38029901), (793, 26232479), (1037, 20060131), (1183, 17584409), (1547, 13446901), (1891, 11000717), (2821, 7374107), (2873, 7240639), (3689, 5639023), (3829, 5432843), (5239, 3970673), (5551, 3747497), (6851, 3036397), (7111, 2925377), (7259, 2865733), (9299, 2237053), (10309, 2017883), (13237, 1571531), (13481, 1543087), (16957, 1226771), (20111, 1034377), (24583, 846209), (32147, 647101), (33367, 623441), (36673, 567239), (47957, 433771), (49777, 417911), (65093, 319579), (72163, 288269), (89063, 233569), (92443, 225029), (94367, 220441), (118699, 175253), (120887, 172081)]