21753123

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 34245120

約数和(自身を除く): 12491997

約数列:

[1, 3, 7, 21, 59, 97, 177, 181, 291, 413, 543, 679, 1239, 1267, 2037, 3801, 5723, 10679, 17169, 17557, 32037, 40061, 52671, 74753, 120183, 122899, 224259, 368697, 1035863, 3107589, 7251041, 21753123]

約数ペア:

[(1, 21753123), (3, 7251041), (7, 3107589), (21, 1035863), (59, 368697), (97, 224259), (177, 122899), (181, 120183), (291, 74753), (413, 52671), (543, 40061), (679, 32037), (1239, 17557), (1267, 17169), (2037, 10679), (3801, 5723)]