31245669

素因数分解:

$3^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 58042880

約数和(自身を除く): 26797211

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 157, 189, 243, 273, 351, 471, 567, 729, 819, 1053, 1099, 1413, 1701, 2041, 2187, 2457, 3159, 3297, 4239, 5103, 6123, 7371, 9477, 9891, 12717, 14287, 15309, 18369, 22113, 28431, 29673, 38151, 42861, 55107, 66339, 89019, 114453, 128583, 165321, 199017, 267057, 343359, 385749, 495963, 801171, 1157247, 1487889, 2403513, 3471741, 4463667, 10415223, 31245669]

約数ペア:

[(1, 31245669), (3, 10415223), (7, 4463667), (9, 3471741), (13, 2403513), (21, 1487889), (27, 1157247), (39, 801171), (63, 495963), (81, 385749), (91, 343359), (117, 267057), (157, 199017), (189, 165321), (243, 128583), (273, 114453), (351, 89019), (471, 66339), (567, 55107), (729, 42861), (819, 38151), (1053, 29673), (1099, 28431), (1413, 22113), (1701, 18369), (2041, 15309), (2187, 14287), (2457, 12717), (3159, 9891), (3297, 9477), (4239, 7371), (5103, 6123)]