21109308

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 38403012

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 23, 33, 34, 44, 46, 51, 66, 68, 69, 92, 102, 132, 138, 187, 204, 253, 276, 374, 391, 409, 506, 561, 748, 759, 782, 818, 1012, 1122, 1173, 1227, 1518, 1564, 1636, 2244, 2346, 2454, 3036, 4301, 4499, 4692, 4908, 6953, 8602, 8998, 9407, 12903, 13497, 13906, 17204, 17996, 18814, 20859, 25806, 26994, 27812, 28221, 37628, 41718, 51612, 53988, 56442, 76483, 83436, 103477, 112884, 152966, 159919, 206954, 229449, 305932, 310431, 319838, 413908, 458898, 479757, 620862, 639676, 917796, 959514, 1241724, 1759109, 1919028, 3518218, 5277327, 7036436, 10554654, 21109308]

約数ペア:

[(1, 21109308), (2, 10554654), (3, 7036436), (4, 5277327), (6, 3518218), (11, 1919028), (12, 1759109), (17, 1241724), (22, 959514), (23, 917796), (33, 639676), (34, 620862), (44, 479757), (46, 458898), (51, 413908), (66, 319838), (68, 310431), (69, 305932), (92, 229449), (102, 206954), (132, 159919), (138, 152966), (187, 112884), (204, 103477), (253, 83436), (276, 76483), (374, 56442), (391, 53988), (409, 51612), (506, 41718), (561, 37628), (748, 28221), (759, 27812), (782, 26994), (818, 25806), (1012, 20859), (1122, 18814), (1173, 17996), (1227, 17204), (1518, 13906), (1564, 13497), (1636, 12903), (2244, 9407), (2346, 8998), (2454, 8602), (3036, 6953), (4301, 4908), (4499, 4692)]