28697487

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15017}}^1$

素因数の和:15047

約数の個数: 24

約数和(自身を含む): 47937456

約数和(自身を除く): 19239969

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 15017, 45051, 105119, 195221, 315357, 585663, 735833, 1366547, 2207499, 4099641, 9565829, 28697487]

約数ペア:

[(1, 28697487), (3, 9565829), (7, 4099641), (13, 2207499), (21, 1366547), (39, 735833), (49, 585663), (91, 315357), (147, 195221), (273, 105119), (637, 45051), (1911, 15017)]