198197181

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1741}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 355089280

約数和(自身を除く): 156892099

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 139, 273, 417, 819, 973, 1251, 1741, 1807, 2919, 5223, 5421, 8757, 12187, 12649, 15669, 16263, 22633, 36561, 37947, 67899, 109683, 113841, 158431, 203697, 241999, 475293, 725997, 1425879, 1693993, 2177991, 3145987, 5081979, 9437961, 15245937, 22021909, 28313883, 66065727, 198197181]

約数ペア:

[(1, 198197181), (3, 66065727), (7, 28313883), (9, 22021909), (13, 15245937), (21, 9437961), (39, 5081979), (63, 3145987), (91, 2177991), (117, 1693993), (139, 1425879), (273, 725997), (417, 475293), (819, 241999), (973, 203697), (1251, 158431), (1741, 113841), (1807, 109683), (2919, 67899), (5223, 37947), (5421, 36561), (8757, 22633), (12187, 16263), (12649, 15669)]