21007178928

素因数分解:

$2^4\times 3^6\times {\mathrm{67}}^1\times {\mathrm{26881}}^1$

素因数の和:26974

約数の個数: 140

約数和(自身を含む): 61937310808

約数和(自身を除く): 40930131880

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 67, 72, 81, 108, 134, 144, 162, 201, 216, 243, 268, 324, 402, 432, 486, 536, 603, 648, 729, 804, 972, 1072, 1206, 1296, 1458, 1608, 1809, 1944, 2412, 2916, 3216, 3618, 3888, 4824, 5427, 5832, 7236, 9648, 10854, 11664, 14472, 16281, 21708, 26881, 28944, 32562, 43416, 48843, 53762, 65124, 80643, 86832, 97686, 107524, 130248, 161286, 195372, 215048, 241929, 260496, 322572, 390744, 430096, 483858, 645144, 725787, 781488, 967716, 1290288, 1451574, 1801027, 1935432, 2177361, 2903148, 3602054, 3870864, 4354722, 5403081, 5806296, 6532083, 7204108, 8709444, 10806162, 11612592, 13064166, 14408216, 16209243, 17418888, 19596249, 21612324, 26128332, 28816432, 32418486, 34837776, 39192498, 43224648, 48627729, 52256664, 64836972, 78384996, 86449296, 97255458, 104513328, 129673944, 145883187, 156769992, 194510916, 259347888, 291766374, 313539984, 389021832, 437649561, 583532748, 778043664, 875299122, 1167065496, 1312948683, 1750598244, 2334130992, 2625897366, 3501196488, 5251794732, 7002392976, 10503589464, 21007178928]

約数ペア:

[(1, 21007178928), (2, 10503589464), (3, 7002392976), (4, 5251794732), (6, 3501196488), (8, 2625897366), (9, 2334130992), (12, 1750598244), (16, 1312948683), (18, 1167065496), (24, 875299122), (27, 778043664), (36, 583532748), (48, 437649561), (54, 389021832), (67, 313539984), (72, 291766374), (81, 259347888), (108, 194510916), (134, 156769992), (144, 145883187), (162, 129673944), (201, 104513328), (216, 97255458), (243, 86449296), (268, 78384996), (324, 64836972), (402, 52256664), (432, 48627729), (486, 43224648), (536, 39192498), (603, 34837776), (648, 32418486), (729, 28816432), (804, 26128332), (972, 21612324), (1072, 19596249), (1206, 17418888), (1296, 16209243), (1458, 14408216), (1608, 13064166), (1809, 11612592), (1944, 10806162), (2412, 8709444), (2916, 7204108), (3216, 6532083), (3618, 5806296), (3888, 5403081), (4824, 4354722), (5427, 3870864), (5832, 3602054), (7236, 2903148), (9648, 2177361), (10854, 1935432), (11664, 1801027), (14472, 1451574), (16281, 1290288), (21708, 967716), (26881, 781488), (28944, 725787), (32562, 645144), (43416, 483858), (48843, 430096), (53762, 390744), (65124, 322572), (80643, 260496), (86832, 241929), (97686, 215048), (107524, 195372), (130248, 161286)]