18819164

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 42180768

約数和(自身を除く): 23361604

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 97, 164, 169, 182, 194, 287, 338, 364, 388, 533, 574, 676, 679, 1066, 1148, 1183, 1261, 1358, 2132, 2366, 2522, 2716, 3731, 3977, 4732, 5044, 6929, 7462, 7954, 8827, 13858, 14924, 15908, 16393, 17654, 27716, 27839, 32786, 35308, 48503, 51701, 55678, 65572, 97006, 103402, 111356, 114751, 194012, 206804, 229502, 361907, 459004, 672113, 723814, 1344226, 1447628, 2688452, 4704791, 9409582, 18819164]

約数ペア:

[(1, 18819164), (2, 9409582), (4, 4704791), (7, 2688452), (13, 1447628), (14, 1344226), (26, 723814), (28, 672113), (41, 459004), (52, 361907), (82, 229502), (91, 206804), (97, 194012), (164, 114751), (169, 111356), (182, 103402), (194, 97006), (287, 65572), (338, 55678), (364, 51701), (388, 48503), (533, 35308), (574, 32786), (676, 27839), (679, 27716), (1066, 17654), (1148, 16393), (1183, 15908), (1261, 14924), (1358, 13858), (2132, 8827), (2366, 7954), (2522, 7462), (2716, 6929), (3731, 5044), (3977, 4732)]