28089009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2377}}^1$

素因数の和:2497

約数の個数: 24

約数和(自身を含む): 44145192

約数和(自身を除く): 16056183

約数列:

[1, 3, 9, 13, 39, 101, 117, 303, 909, 1313, 2377, 3939, 7131, 11817, 21393, 30901, 92703, 240077, 278109, 720231, 2160693, 3121001, 9363003, 28089009]

約数ペア:

[(1, 28089009), (3, 9363003), (9, 3121001), (13, 2160693), (39, 720231), (101, 278109), (117, 240077), (303, 92703), (909, 30901), (1313, 21393), (2377, 11817), (3939, 7131)]