21653856

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:513

約数の個数: 144

約数和(自身を含む): 73592064

約数和(自身を除く): 51938208

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 28, 32, 36, 42, 46, 48, 56, 63, 69, 72, 84, 92, 96, 112, 126, 138, 144, 161, 168, 184, 207, 224, 252, 276, 288, 322, 336, 368, 414, 467, 483, 504, 552, 644, 672, 736, 828, 934, 966, 1008, 1104, 1288, 1401, 1449, 1656, 1868, 1932, 2016, 2208, 2576, 2802, 2898, 3269, 3312, 3736, 3864, 4203, 5152, 5604, 5796, 6538, 6624, 7472, 7728, 8406, 9807, 10741, 11208, 11592, 13076, 14944, 15456, 16812, 19614, 21482, 22416, 23184, 26152, 29421, 32223, 33624, 39228, 42964, 44832, 46368, 52304, 58842, 64446, 67248, 75187, 78456, 85928, 96669, 104608, 117684, 128892, 134496, 150374, 156912, 171856, 193338, 225561, 235368, 257784, 300748, 313824, 343712, 386676, 451122, 470736, 515568, 601496, 676683, 773352, 902244, 941472, 1031136, 1202992, 1353366, 1546704, 1804488, 2405984, 2706732, 3093408, 3608976, 5413464, 7217952, 10826928, 21653856]

約数ペア:

[(1, 21653856), (2, 10826928), (3, 7217952), (4, 5413464), (6, 3608976), (7, 3093408), (8, 2706732), (9, 2405984), (12, 1804488), (14, 1546704), (16, 1353366), (18, 1202992), (21, 1031136), (23, 941472), (24, 902244), (28, 773352), (32, 676683), (36, 601496), (42, 515568), (46, 470736), (48, 451122), (56, 386676), (63, 343712), (69, 313824), (72, 300748), (84, 257784), (92, 235368), (96, 225561), (112, 193338), (126, 171856), (138, 156912), (144, 150374), (161, 134496), (168, 128892), (184, 117684), (207, 104608), (224, 96669), (252, 85928), (276, 78456), (288, 75187), (322, 67248), (336, 64446), (368, 58842), (414, 52304), (467, 46368), (483, 44832), (504, 42964), (552, 39228), (644, 33624), (672, 32223), (736, 29421), (828, 26152), (934, 23184), (966, 22416), (1008, 21482), (1104, 19614), (1288, 16812), (1401, 15456), (1449, 14944), (1656, 13076), (1868, 11592), (1932, 11208), (2016, 10741), (2208, 9807), (2576, 8406), (2802, 7728), (2898, 7472), (3269, 6624), (3312, 6538), (3736, 5796), (3864, 5604), (4203, 5152)]