21761040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12953}}^1$

素因数の和:12976

約数の個数: 80

約数和(自身を含む): 77102208

約数和(自身を除く): 55341168

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12953, 25906, 38859, 51812, 64765, 77718, 90671, 103624, 129530, 155436, 181342, 194295, 207248, 259060, 272013, 310872, 362684, 388590, 453355, 518120, 544026, 621744, 725368, 777180, 906710, 1036240, 1088052, 1360065, 1450736, 1554360, 1813420, 2176104, 2720130, 3108720, 3626840, 4352208, 5440260, 7253680, 10880520, 21761040]

約数ペア:

[(1, 21761040), (2, 10880520), (3, 7253680), (4, 5440260), (5, 4352208), (6, 3626840), (7, 3108720), (8, 2720130), (10, 2176104), (12, 1813420), (14, 1554360), (15, 1450736), (16, 1360065), (20, 1088052), (21, 1036240), (24, 906710), (28, 777180), (30, 725368), (35, 621744), (40, 544026), (42, 518120), (48, 453355), (56, 388590), (60, 362684), (70, 310872), (80, 272013), (84, 259060), (105, 207248), (112, 194295), (120, 181342), (140, 155436), (168, 129530), (210, 103624), (240, 90671), (280, 77718), (336, 64765), (420, 51812), (560, 38859), (840, 25906), (1680, 12953)]