20066697

素因数分解:

$3^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 15156855

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 243, 251, 329, 423, 567, 753, 987, 1269, 1701, 1757, 2259, 2961, 3807, 5271, 6777, 8883, 11421, 11797, 15813, 20331, 26649, 35391, 47439, 60993, 79947, 82579, 106173, 142317, 247737, 318519, 426951, 743211, 955557, 2229633, 2866671, 6688899, 20066697]

約数ペア:

[(1, 20066697), (3, 6688899), (7, 2866671), (9, 2229633), (21, 955557), (27, 743211), (47, 426951), (63, 318519), (81, 247737), (141, 142317), (189, 106173), (243, 82579), (251, 79947), (329, 60993), (423, 47439), (567, 35391), (753, 26649), (987, 20331), (1269, 15813), (1701, 11797), (1757, 11421), (2259, 8883), (2961, 6777), (3807, 5271)]