221407208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{293}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 470776320

約数和(自身を除く): 249369112

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 277, 293, 341, 554, 586, 682, 1108, 1172, 1364, 2216, 2344, 2728, 3047, 3223, 6094, 6446, 8587, 9083, 12188, 12892, 17174, 18166, 24376, 25784, 34348, 36332, 68696, 72664, 81161, 94457, 99913, 162322, 188914, 199826, 324644, 377828, 399652, 649288, 755656, 799304, 892771, 1785542, 2515991, 3571084, 5031982, 7142168, 10063964, 20127928, 27675901, 55351802, 110703604, 221407208]

約数ペア:

[(1, 221407208), (2, 110703604), (4, 55351802), (8, 27675901), (11, 20127928), (22, 10063964), (31, 7142168), (44, 5031982), (62, 3571084), (88, 2515991), (124, 1785542), (248, 892771), (277, 799304), (293, 755656), (341, 649288), (554, 399652), (586, 377828), (682, 324644), (1108, 199826), (1172, 188914), (1364, 162322), (2216, 99913), (2344, 94457), (2728, 81161), (3047, 72664), (3223, 68696), (6094, 36332), (6446, 34348), (8587, 25784), (9083, 24376), (12188, 18166), (12892, 17174)]