19973368

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 40781880

約数和(自身を除く): 20808512

約数列:

[1, 2, 4, 8, 17, 34, 53, 68, 106, 136, 163, 212, 289, 326, 424, 578, 652, 901, 1156, 1304, 1802, 2312, 2771, 3604, 5542, 7208, 8639, 11084, 15317, 17278, 22168, 30634, 34556, 47107, 61268, 69112, 94214, 122536, 146863, 188428, 293726, 376856, 587452, 1174904, 2496671, 4993342, 9986684, 19973368]

約数ペア:

[(1, 19973368), (2, 9986684), (4, 4993342), (8, 2496671), (17, 1174904), (34, 587452), (53, 376856), (68, 293726), (106, 188428), (136, 146863), (163, 122536), (212, 94214), (289, 69112), (326, 61268), (424, 47107), (578, 34556), (652, 30634), (901, 22168), (1156, 17278), (1304, 15317), (1802, 11084), (2312, 8639), (2771, 7208), (3604, 5542)]