81143118

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:686

約数の個数: 72

約数和(自身を含む): 205992072

約数和(自身を除く): 124848954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 197, 294, 394, 441, 467, 591, 882, 934, 1182, 1379, 1401, 1773, 2758, 2802, 3269, 3546, 4137, 4203, 6538, 8274, 8406, 9653, 9807, 12411, 19306, 19614, 22883, 24822, 28959, 29421, 45766, 57918, 58842, 68649, 86877, 91999, 137298, 173754, 183998, 205947, 275997, 411894, 551994, 643993, 827991, 1287986, 1655982, 1931979, 3863958, 4507951, 5795937, 9015902, 11591874, 13523853, 27047706, 40571559, 81143118]

約数ペア:

[(1, 81143118), (2, 40571559), (3, 27047706), (6, 13523853), (7, 11591874), (9, 9015902), (14, 5795937), (18, 4507951), (21, 3863958), (42, 1931979), (49, 1655982), (63, 1287986), (98, 827991), (126, 643993), (147, 551994), (197, 411894), (294, 275997), (394, 205947), (441, 183998), (467, 173754), (591, 137298), (882, 91999), (934, 86877), (1182, 68649), (1379, 58842), (1401, 57918), (1773, 45766), (2758, 29421), (2802, 28959), (3269, 24822), (3546, 22883), (4137, 19614), (4203, 19306), (6538, 12411), (8274, 9807), (8406, 9653)]