21786492

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 63673344

約数和(自身を除く): 41886852

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 71, 78, 84, 91, 142, 156, 182, 213, 273, 281, 284, 364, 426, 497, 546, 562, 843, 852, 923, 994, 1092, 1124, 1491, 1686, 1846, 1967, 1988, 2769, 2982, 3372, 3653, 3692, 3934, 5538, 5901, 5964, 6461, 7306, 7868, 10959, 11076, 11802, 12922, 14612, 19383, 19951, 21918, 23604, 25571, 25844, 38766, 39902, 43836, 51142, 59853, 76713, 77532, 79804, 102284, 119706, 139657, 153426, 239412, 259363, 279314, 306852, 418971, 518726, 558628, 778089, 837942, 1037452, 1556178, 1675884, 1815541, 3112356, 3631082, 5446623, 7262164, 10893246, 21786492]

約数ペア:

[(1, 21786492), (2, 10893246), (3, 7262164), (4, 5446623), (6, 3631082), (7, 3112356), (12, 1815541), (13, 1675884), (14, 1556178), (21, 1037452), (26, 837942), (28, 778089), (39, 558628), (42, 518726), (52, 418971), (71, 306852), (78, 279314), (84, 259363), (91, 239412), (142, 153426), (156, 139657), (182, 119706), (213, 102284), (273, 79804), (281, 77532), (284, 76713), (364, 59853), (426, 51142), (497, 43836), (546, 39902), (562, 38766), (843, 25844), (852, 25571), (923, 23604), (994, 21918), (1092, 19951), (1124, 19383), (1491, 14612), (1686, 12922), (1846, 11802), (1967, 11076), (1988, 10959), (2769, 7868), (2982, 7306), (3372, 6461), (3653, 5964), (3692, 5901), (3934, 5538)]