21174816

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 64520064

約数和(自身を除く): 43345248

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 47, 48, 52, 57, 76, 78, 94, 96, 104, 114, 141, 152, 156, 188, 208, 228, 247, 282, 304, 312, 361, 376, 416, 456, 494, 564, 608, 611, 624, 722, 741, 752, 893, 912, 988, 1083, 1128, 1222, 1248, 1444, 1482, 1504, 1786, 1824, 1833, 1976, 2166, 2256, 2444, 2679, 2888, 2964, 3572, 3666, 3952, 4332, 4512, 4693, 4888, 5358, 5776, 5928, 7144, 7332, 7904, 8664, 9386, 9776, 10716, 11552, 11609, 11856, 14079, 14288, 14664, 16967, 17328, 18772, 19552, 21432, 23218, 23712, 28158, 28576, 29328, 33934, 34656, 34827, 37544, 42864, 46436, 50901, 56316, 58656, 67868, 69654, 75088, 85728, 92872, 101802, 112632, 135736, 139308, 150176, 185744, 203604, 220571, 225264, 271472, 278616, 371488, 407208, 441142, 450528, 542944, 557232, 661713, 814416, 882284, 1114464, 1323426, 1628832, 1764568, 2646852, 3529136, 5293704, 7058272, 10587408, 21174816]

約数ペア:

[(1, 21174816), (2, 10587408), (3, 7058272), (4, 5293704), (6, 3529136), (8, 2646852), (12, 1764568), (13, 1628832), (16, 1323426), (19, 1114464), (24, 882284), (26, 814416), (32, 661713), (38, 557232), (39, 542944), (47, 450528), (48, 441142), (52, 407208), (57, 371488), (76, 278616), (78, 271472), (94, 225264), (96, 220571), (104, 203604), (114, 185744), (141, 150176), (152, 139308), (156, 135736), (188, 112632), (208, 101802), (228, 92872), (247, 85728), (282, 75088), (304, 69654), (312, 67868), (361, 58656), (376, 56316), (416, 50901), (456, 46436), (494, 42864), (564, 37544), (608, 34827), (611, 34656), (624, 33934), (722, 29328), (741, 28576), (752, 28158), (893, 23712), (912, 23218), (988, 21432), (1083, 19552), (1128, 18772), (1222, 17328), (1248, 16967), (1444, 14664), (1482, 14288), (1504, 14079), (1786, 11856), (1824, 11609), (1833, 11552), (1976, 10716), (2166, 9776), (2256, 9386), (2444, 8664), (2679, 7904), (2888, 7332), (2964, 7144), (3572, 5928), (3666, 5776), (3952, 5358), (4332, 4888), (4512, 4693)]