21573188

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 48206592

約数和(自身を除く): 26633404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 52, 91, 94, 97, 169, 182, 188, 194, 329, 338, 364, 388, 611, 658, 676, 679, 1183, 1222, 1261, 1316, 1358, 2366, 2444, 2522, 2716, 4277, 4559, 4732, 5044, 7943, 8554, 8827, 9118, 15886, 16393, 17108, 17654, 18236, 31772, 31913, 32786, 35308, 55601, 59267, 63826, 65572, 111202, 114751, 118534, 127652, 222404, 229502, 237068, 414869, 459004, 770471, 829738, 1540942, 1659476, 3081884, 5393297, 10786594, 21573188]

約数ペア:

[(1, 21573188), (2, 10786594), (4, 5393297), (7, 3081884), (13, 1659476), (14, 1540942), (26, 829738), (28, 770471), (47, 459004), (52, 414869), (91, 237068), (94, 229502), (97, 222404), (169, 127652), (182, 118534), (188, 114751), (194, 111202), (329, 65572), (338, 63826), (364, 59267), (388, 55601), (611, 35308), (658, 32786), (676, 31913), (679, 31772), (1183, 18236), (1222, 17654), (1261, 17108), (1316, 16393), (1358, 15886), (2366, 9118), (2444, 8827), (2522, 8554), (2716, 7943), (4277, 5044), (4559, 4732)]