51506091

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20963}}^1$

素因数の和:20992

約数の個数: 32

約数和(自身を含む): 93918720

約数和(自身を除く): 42412629

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 20963, 62889, 146741, 188667, 272519, 440223, 566001, 817557, 1320669, 1907633, 2452671, 3962007, 5722899, 7358013, 17168697, 51506091]

約数ペア:

[(1, 51506091), (3, 17168697), (7, 7358013), (9, 5722899), (13, 3962007), (21, 2452671), (27, 1907633), (39, 1320669), (63, 817557), (91, 566001), (117, 440223), (189, 272519), (273, 188667), (351, 146741), (819, 62889), (2457, 20963)]