16721874

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:296

約数の個数: 72

約数和(自身を含む): 41109120

約数和(自身を除く): 24387246

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 39, 46, 69, 78, 117, 138, 169, 207, 234, 239, 299, 338, 414, 478, 507, 598, 717, 897, 1014, 1434, 1521, 1794, 2151, 2691, 3042, 3107, 3887, 4302, 5382, 5497, 6214, 7774, 9321, 10994, 11661, 16491, 18642, 23322, 27963, 32982, 34983, 40391, 49473, 55926, 69966, 71461, 80782, 98946, 121173, 142922, 214383, 242346, 363519, 428766, 643149, 727038, 928993, 1286298, 1857986, 2786979, 5573958, 8360937, 16721874]

約数ペア:

[(1, 16721874), (2, 8360937), (3, 5573958), (6, 2786979), (9, 1857986), (13, 1286298), (18, 928993), (23, 727038), (26, 643149), (39, 428766), (46, 363519), (69, 242346), (78, 214383), (117, 142922), (138, 121173), (169, 98946), (207, 80782), (234, 71461), (239, 69966), (299, 55926), (338, 49473), (414, 40391), (478, 34983), (507, 32982), (598, 27963), (717, 23322), (897, 18642), (1014, 16491), (1434, 11661), (1521, 10994), (1794, 9321), (2151, 7774), (2691, 6214), (3042, 5497), (3107, 5382), (3887, 4302)]