21004187776

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{5011}}^1$

素因数の和:5278

約数の個数: 128

約数和(自身を含む): 49384238400

約数和(自身を除く): 28380050624

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 229, 286, 352, 416, 458, 572, 704, 832, 916, 1144, 1408, 1664, 1832, 2288, 2519, 2977, 3664, 4576, 5011, 5038, 5954, 7328, 9152, 10022, 10076, 11908, 14656, 18304, 20044, 20152, 23816, 29312, 32747, 40088, 40304, 47632, 55121, 65143, 65494, 80176, 80608, 95264, 110242, 130286, 130988, 160352, 161216, 190528, 220484, 260572, 261976, 320704, 322432, 381056, 440968, 521144, 523952, 641408, 716573, 881936, 1042288, 1047904, 1147519, 1433146, 1763872, 2084576, 2095808, 2295038, 2866292, 3527744, 4169152, 4191616, 4590076, 5732584, 7055488, 8338304, 9180152, 11465168, 12622709, 14917747, 18360304, 22930336, 25245418, 29835494, 36720608, 45860672, 50490836, 59670988, 73441216, 91721344, 100981672, 119341976, 146882432, 164095217, 201963344, 238683952, 328190434, 403926688, 477367904, 656380868, 807853376, 954735808, 1312761736, 1615706752, 1909471616, 2625523472, 5251046944, 10502093888, 21004187776]

約数ペア:

[(1, 21004187776), (2, 10502093888), (4, 5251046944), (8, 2625523472), (11, 1909471616), (13, 1615706752), (16, 1312761736), (22, 954735808), (26, 807853376), (32, 656380868), (44, 477367904), (52, 403926688), (64, 328190434), (88, 238683952), (104, 201963344), (128, 164095217), (143, 146882432), (176, 119341976), (208, 100981672), (229, 91721344), (286, 73441216), (352, 59670988), (416, 50490836), (458, 45860672), (572, 36720608), (704, 29835494), (832, 25245418), (916, 22930336), (1144, 18360304), (1408, 14917747), (1664, 12622709), (1832, 11465168), (2288, 9180152), (2519, 8338304), (2977, 7055488), (3664, 5732584), (4576, 4590076), (5011, 4191616), (5038, 4169152), (5954, 3527744), (7328, 2866292), (9152, 2295038), (10022, 2095808), (10076, 2084576), (11908, 1763872), (14656, 1433146), (18304, 1147519), (20044, 1047904), (20152, 1042288), (23816, 881936), (29312, 716573), (32747, 641408), (40088, 523952), (40304, 521144), (47632, 440968), (55121, 381056), (65143, 322432), (65494, 320704), (80176, 261976), (80608, 260572), (95264, 220484), (110242, 190528), (130286, 161216), (130988, 160352)]