20762469

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 37425024

約数和(自身を除く): 16662555

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 101, 117, 251, 273, 303, 707, 753, 819, 909, 1313, 1757, 2121, 2259, 3263, 3939, 5271, 6363, 9191, 9789, 11817, 15813, 22841, 25351, 27573, 29367, 68523, 76053, 82719, 177457, 205569, 228159, 329563, 532371, 988689, 1597113, 2306941, 2966067, 6920823, 20762469]

約数ペア:

[(1, 20762469), (3, 6920823), (7, 2966067), (9, 2306941), (13, 1597113), (21, 988689), (39, 532371), (63, 329563), (91, 228159), (101, 205569), (117, 177457), (251, 82719), (273, 76053), (303, 68523), (707, 29367), (753, 27573), (819, 25351), (909, 22841), (1313, 15813), (1757, 11817), (2121, 9789), (2259, 9191), (3263, 6363), (3939, 5271)]