28376721

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 42007680

約数和(自身を除く): 13630959

約数列:

[1, 3, 9, 79, 107, 237, 321, 373, 711, 963, 1119, 3357, 8453, 25359, 29467, 39911, 76077, 88401, 119733, 265203, 359199, 3152969, 9458907, 28376721]

約数ペア:

[(1, 28376721), (3, 9458907), (9, 3152969), (79, 359199), (107, 265203), (237, 119733), (321, 88401), (373, 76077), (711, 39911), (963, 29467), (1119, 25359), (3357, 8453)]