19870352

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 40875360

約数和(自身を除く): 21005008

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 163, 304, 326, 401, 652, 802, 1304, 1604, 2608, 3097, 3208, 6194, 6416, 7619, 12388, 15238, 24776, 30476, 49552, 60952, 65363, 121904, 130726, 261452, 522904, 1045808, 1241897, 2483794, 4967588, 9935176, 19870352]

約数ペア:

[(1, 19870352), (2, 9935176), (4, 4967588), (8, 2483794), (16, 1241897), (19, 1045808), (38, 522904), (76, 261452), (152, 130726), (163, 121904), (304, 65363), (326, 60952), (401, 49552), (652, 30476), (802, 24776), (1304, 15238), (1604, 12388), (2608, 7619), (3097, 6416), (3208, 6194)]