21032880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:315

約数の個数: 160

約数和(自身を含む): 73709568

約数和(自身を除く): 52676688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 33, 40, 44, 48, 55, 60, 62, 66, 80, 88, 93, 110, 120, 124, 132, 155, 165, 176, 186, 220, 240, 248, 257, 264, 310, 330, 341, 372, 440, 465, 496, 514, 528, 620, 660, 682, 744, 771, 880, 930, 1023, 1028, 1240, 1285, 1320, 1364, 1488, 1542, 1705, 1860, 2046, 2056, 2480, 2570, 2640, 2728, 2827, 3084, 3410, 3720, 3855, 4092, 4112, 5115, 5140, 5456, 5654, 6168, 6820, 7440, 7710, 7967, 8184, 8481, 10230, 10280, 11308, 12336, 13640, 14135, 15420, 15934, 16368, 16962, 20460, 20560, 22616, 23901, 27280, 28270, 30840, 31868, 33924, 39835, 40920, 42405, 45232, 47802, 56540, 61680, 63736, 67848, 79670, 81840, 84810, 87637, 95604, 113080, 119505, 127472, 135696, 159340, 169620, 175274, 191208, 226160, 239010, 262911, 318680, 339240, 350548, 382416, 438185, 478020, 525822, 637360, 678480, 701096, 876370, 956040, 1051644, 1314555, 1402192, 1752740, 1912080, 2103288, 2629110, 3505480, 4206576, 5258220, 7010960, 10516440, 21032880]

約数ペア:

[(1, 21032880), (2, 10516440), (3, 7010960), (4, 5258220), (5, 4206576), (6, 3505480), (8, 2629110), (10, 2103288), (11, 1912080), (12, 1752740), (15, 1402192), (16, 1314555), (20, 1051644), (22, 956040), (24, 876370), (30, 701096), (31, 678480), (33, 637360), (40, 525822), (44, 478020), (48, 438185), (55, 382416), (60, 350548), (62, 339240), (66, 318680), (80, 262911), (88, 239010), (93, 226160), (110, 191208), (120, 175274), (124, 169620), (132, 159340), (155, 135696), (165, 127472), (176, 119505), (186, 113080), (220, 95604), (240, 87637), (248, 84810), (257, 81840), (264, 79670), (310, 67848), (330, 63736), (341, 61680), (372, 56540), (440, 47802), (465, 45232), (496, 42405), (514, 40920), (528, 39835), (620, 33924), (660, 31868), (682, 30840), (744, 28270), (771, 27280), (880, 23901), (930, 22616), (1023, 20560), (1028, 20460), (1240, 16962), (1285, 16368), (1320, 15934), (1364, 15420), (1488, 14135), (1542, 13640), (1705, 12336), (1860, 11308), (2046, 10280), (2056, 10230), (2480, 8481), (2570, 8184), (2640, 7967), (2728, 7710), (2827, 7440), (3084, 6820), (3410, 6168), (3720, 5654), (3855, 5456), (4092, 5140), (4112, 5115)]