20109101877

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2521}}^1$

素因数の和:2696

約数の個数: 80

約数和(自身を含む): 32518062720

約数和(自身を除く): 12408960843

約数列:

[1, 3, 9, 19, 27, 57, 71, 73, 81, 171, 213, 219, 513, 639, 657, 1349, 1387, 1539, 1917, 1971, 2521, 4047, 4161, 5183, 5751, 5913, 7563, 12141, 12483, 15549, 22689, 36423, 37449, 46647, 47899, 68067, 98477, 109269, 112347, 139941, 143697, 178991, 184033, 204201, 295431, 419823, 431091, 536973, 552099, 886293, 1293273, 1610919, 1656297, 2658879, 3400829, 3496627, 3879819, 4832757, 4968891, 7976637, 10202487, 10489881, 13066343, 14498271, 14906673, 30607461, 31469643, 39199029, 91822383, 94408929, 117597087, 248260517, 275467149, 283226787, 352791261, 744781551, 1058373783, 2234344653, 6703033959, 20109101877]

約数ペア:

[(1, 20109101877), (3, 6703033959), (9, 2234344653), (19, 1058373783), (27, 744781551), (57, 352791261), (71, 283226787), (73, 275467149), (81, 248260517), (171, 117597087), (213, 94408929), (219, 91822383), (513, 39199029), (639, 31469643), (657, 30607461), (1349, 14906673), (1387, 14498271), (1539, 13066343), (1917, 10489881), (1971, 10202487), (2521, 7976637), (4047, 4968891), (4161, 4832757), (5183, 3879819), (5751, 3496627), (5913, 3400829), (7563, 2658879), (12141, 1656297), (12483, 1610919), (15549, 1293273), (22689, 886293), (36423, 552099), (37449, 536973), (46647, 431091), (47899, 419823), (68067, 295431), (98477, 204201), (109269, 184033), (112347, 178991), (139941, 143697)]