20730892

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{337}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 45048640

約数和(自身を除く): 24317748

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 337, 338, 364, 674, 676, 1183, 1348, 2197, 2359, 2366, 4381, 4394, 4718, 4732, 8762, 8788, 9436, 15379, 17524, 30667, 30758, 56953, 61334, 61516, 113906, 122668, 227812, 398671, 740389, 797342, 1480778, 1594684, 2961556, 5182723, 10365446, 20730892]

約数ペア:

[(1, 20730892), (2, 10365446), (4, 5182723), (7, 2961556), (13, 1594684), (14, 1480778), (26, 797342), (28, 740389), (52, 398671), (91, 227812), (169, 122668), (182, 113906), (337, 61516), (338, 61334), (364, 56953), (674, 30758), (676, 30667), (1183, 17524), (1348, 15379), (2197, 9436), (2359, 8788), (2366, 8762), (4381, 4732), (4394, 4718)]