28379493

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2917}}^1$

素因数の和:2993

約数の個数: 24

約数和(自身を含む): 43699968

約数和(自身を除く): 15320475

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2917, 3243, 8751, 9729, 26253, 67091, 137099, 201273, 411297, 603819, 1233891, 3153277, 9459831, 28379493]

約数ペア:

[(1, 28379493), (3, 9459831), (9, 3153277), (23, 1233891), (47, 603819), (69, 411297), (141, 201273), (207, 137099), (423, 67091), (1081, 26253), (2917, 9729), (3243, 8751)]