209075139

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 380259360

約数和(自身を除く): 171184221

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 169, 219, 269, 273, 507, 511, 657, 807, 819, 949, 1183, 1521, 1533, 1883, 2421, 2847, 3497, 3549, 4599, 5649, 6643, 8541, 10491, 10647, 12337, 16947, 19637, 19929, 24479, 31473, 37011, 45461, 58911, 59787, 73437, 86359, 111033, 136383, 137459, 176733, 220311, 255281, 259077, 318227, 409149, 412377, 765843, 777231, 954681, 1237131, 1786967, 2297529, 2864043, 3318653, 5360901, 9955959, 16082703, 23230571, 29867877, 69691713, 209075139]

約数ペア:

[(1, 209075139), (3, 69691713), (7, 29867877), (9, 23230571), (13, 16082703), (21, 9955959), (39, 5360901), (63, 3318653), (73, 2864043), (91, 2297529), (117, 1786967), (169, 1237131), (219, 954681), (269, 777231), (273, 765843), (507, 412377), (511, 409149), (657, 318227), (807, 259077), (819, 255281), (949, 220311), (1183, 176733), (1521, 137459), (1533, 136383), (1883, 111033), (2421, 86359), (2847, 73437), (3497, 59787), (3549, 58911), (4599, 45461), (5649, 37011), (6643, 31473), (8541, 24479), (10491, 19929), (10647, 19637), (12337, 16947)]