28411509

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{997}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 45987840

約数和(自身を除く): 17576331

約数列:

[1, 3, 7, 21, 23, 59, 69, 161, 177, 413, 483, 997, 1239, 1357, 2991, 4071, 6979, 9499, 20937, 22931, 28497, 58823, 68793, 160517, 176469, 411761, 481551, 1235283, 1352929, 4058787, 9470503, 28411509]

約数ペア:

[(1, 28411509), (3, 9470503), (7, 4058787), (21, 1352929), (23, 1235283), (59, 481551), (69, 411761), (161, 176469), (177, 160517), (413, 68793), (483, 58823), (997, 28497), (1239, 22931), (1357, 20937), (2991, 9499), (4071, 6979)]