21525840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4271}}^1$

素因数の和:4297

約数の個数: 120

約数和(自身を含む): 82637568

約数和(自身を除く): 61111728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4271, 5040, 8542, 12813, 17084, 21355, 25626, 29897, 34168, 38439, 42710, 51252, 59794, 64065, 68336, 76878, 85420, 89691, 102504, 119588, 128130, 149485, 153756, 170840, 179382, 192195, 205008, 239176, 256260, 269073, 298970, 307512, 341680, 358764, 384390, 448455, 478352, 512520, 538146, 597940, 615024, 717528, 768780, 896910, 1025040, 1076292, 1195880, 1345365, 1435056, 1537560, 1793820, 2152584, 2391760, 2690730, 3075120, 3587640, 4305168, 5381460, 7175280, 10762920, 21525840]

約数ペア:

[(1, 21525840), (2, 10762920), (3, 7175280), (4, 5381460), (5, 4305168), (6, 3587640), (7, 3075120), (8, 2690730), (9, 2391760), (10, 2152584), (12, 1793820), (14, 1537560), (15, 1435056), (16, 1345365), (18, 1195880), (20, 1076292), (21, 1025040), (24, 896910), (28, 768780), (30, 717528), (35, 615024), (36, 597940), (40, 538146), (42, 512520), (45, 478352), (48, 448455), (56, 384390), (60, 358764), (63, 341680), (70, 307512), (72, 298970), (80, 269073), (84, 256260), (90, 239176), (105, 205008), (112, 192195), (120, 179382), (126, 170840), (140, 153756), (144, 149485), (168, 128130), (180, 119588), (210, 102504), (240, 89691), (252, 85420), (280, 76878), (315, 68336), (336, 64065), (360, 59794), (420, 51252), (504, 42710), (560, 38439), (630, 34168), (720, 29897), (840, 25626), (1008, 21355), (1260, 17084), (1680, 12813), (2520, 8542), (4271, 5040)]