21127920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 160

約数和(自身を含む): 73281024

約数和(自身を除く): 52153104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 53, 55, 60, 66, 80, 88, 106, 110, 120, 132, 151, 159, 165, 176, 212, 220, 240, 264, 265, 302, 318, 330, 424, 440, 453, 528, 530, 583, 604, 636, 660, 755, 795, 848, 880, 906, 1060, 1166, 1208, 1272, 1320, 1510, 1590, 1661, 1749, 1812, 2120, 2265, 2332, 2416, 2544, 2640, 2915, 3020, 3180, 3322, 3498, 3624, 4240, 4530, 4664, 4983, 5830, 6040, 6360, 6644, 6996, 7248, 8003, 8305, 8745, 9060, 9328, 9966, 11660, 12080, 12720, 13288, 13992, 16006, 16610, 17490, 18120, 19932, 23320, 24009, 24915, 26576, 27984, 32012, 33220, 34980, 36240, 39864, 40015, 46640, 48018, 49830, 64024, 66440, 69960, 79728, 80030, 88033, 96036, 99660, 120045, 128048, 132880, 139920, 160060, 176066, 192072, 199320, 240090, 264099, 320120, 352132, 384144, 398640, 440165, 480180, 528198, 640240, 704264, 880330, 960360, 1056396, 1320495, 1408528, 1760660, 1920720, 2112792, 2640990, 3521320, 4225584, 5281980, 7042640, 10563960, 21127920]

約数ペア:

[(1, 21127920), (2, 10563960), (3, 7042640), (4, 5281980), (5, 4225584), (6, 3521320), (8, 2640990), (10, 2112792), (11, 1920720), (12, 1760660), (15, 1408528), (16, 1320495), (20, 1056396), (22, 960360), (24, 880330), (30, 704264), (33, 640240), (40, 528198), (44, 480180), (48, 440165), (53, 398640), (55, 384144), (60, 352132), (66, 320120), (80, 264099), (88, 240090), (106, 199320), (110, 192072), (120, 176066), (132, 160060), (151, 139920), (159, 132880), (165, 128048), (176, 120045), (212, 99660), (220, 96036), (240, 88033), (264, 80030), (265, 79728), (302, 69960), (318, 66440), (330, 64024), (424, 49830), (440, 48018), (453, 46640), (528, 40015), (530, 39864), (583, 36240), (604, 34980), (636, 33220), (660, 32012), (755, 27984), (795, 26576), (848, 24915), (880, 24009), (906, 23320), (1060, 19932), (1166, 18120), (1208, 17490), (1272, 16610), (1320, 16006), (1510, 13992), (1590, 13288), (1661, 12720), (1749, 12080), (1812, 11660), (2120, 9966), (2265, 9328), (2332, 9060), (2416, 8745), (2544, 8305), (2640, 8003), (2915, 7248), (3020, 6996), (3180, 6644), (3322, 6360), (3498, 6040), (3624, 5830), (4240, 4983), (4530, 4664)]