21454920984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{653}}^1\times {\mathrm{877}}^1$

素因数の和:1769

約数の個数: 128

約数和(自身を含む): 61739274240

約数和(自身を除く): 40284353256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 223, 446, 653, 669, 877, 892, 1306, 1338, 1561, 1754, 1784, 1959, 2612, 2631, 2676, 3122, 3508, 3918, 4571, 4683, 5224, 5262, 5352, 6139, 6244, 7016, 7836, 9142, 9366, 10524, 12278, 12488, 13713, 15672, 18284, 18417, 18732, 21048, 24556, 27426, 36568, 36834, 37464, 49112, 54852, 73668, 109704, 145619, 147336, 195571, 291238, 391142, 436857, 572681, 582476, 586713, 782284, 873714, 1019333, 1145362, 1164952, 1173426, 1368997, 1564568, 1718043, 1747428, 2038666, 2290724, 2346852, 2737994, 3057999, 3436086, 3494856, 4008767, 4077332, 4106991, 4581448, 4693704, 5475988, 6115998, 6872172, 8017534, 8154664, 8213982, 10951976, 12026301, 12231996, 13744344, 16035068, 16427964, 24052602, 24463992, 32070136, 32855928, 48105204, 96210408, 127707863, 255415726, 383123589, 510831452, 766247178, 893955041, 1021662904, 1532494356, 1787910082, 2681865123, 3064988712, 3575820164, 5363730246, 7151640328, 10727460492, 21454920984]

約数ペア:

[(1, 21454920984), (2, 10727460492), (3, 7151640328), (4, 5363730246), (6, 3575820164), (7, 3064988712), (8, 2681865123), (12, 1787910082), (14, 1532494356), (21, 1021662904), (24, 893955041), (28, 766247178), (42, 510831452), (56, 383123589), (84, 255415726), (168, 127707863), (223, 96210408), (446, 48105204), (653, 32855928), (669, 32070136), (877, 24463992), (892, 24052602), (1306, 16427964), (1338, 16035068), (1561, 13744344), (1754, 12231996), (1784, 12026301), (1959, 10951976), (2612, 8213982), (2631, 8154664), (2676, 8017534), (3122, 6872172), (3508, 6115998), (3918, 5475988), (4571, 4693704), (4683, 4581448), (5224, 4106991), (5262, 4077332), (5352, 4008767), (6139, 3494856), (6244, 3436086), (7016, 3057999), (7836, 2737994), (9142, 2346852), (9366, 2290724), (10524, 2038666), (12278, 1747428), (12488, 1718043), (13713, 1564568), (15672, 1368997), (18284, 1173426), (18417, 1164952), (18732, 1145362), (21048, 1019333), (24556, 873714), (27426, 782284), (36568, 586713), (36834, 582476), (37464, 572681), (49112, 436857), (54852, 391142), (73668, 291238), (109704, 195571), (145619, 147336)]