28871451

素因数分解:

$3^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{883}}^1$

素因数の和:1072

約数の個数: 32

約数和(自身を含む): 49221120

約数和(自身を除く): 20349669

約数列:

[1, 3, 7, 9, 21, 27, 63, 173, 189, 519, 883, 1211, 1557, 2649, 3633, 4671, 6181, 7947, 10899, 18543, 23841, 32697, 55629, 152759, 166887, 458277, 1069313, 1374831, 3207939, 4124493, 9623817, 28871451]

約数ペア:

[(1, 28871451), (3, 9623817), (7, 4124493), (9, 3207939), (21, 1374831), (27, 1069313), (63, 458277), (173, 166887), (189, 152759), (519, 55629), (883, 32697), (1211, 23841), (1557, 18543), (2649, 10899), (3633, 7947), (4671, 6181)]