28138669

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 32465664

約数和(自身を除く): 4326995

約数列:

[1, 13, 31, 41, 131, 169, 403, 533, 1271, 1703, 4061, 5239, 5371, 6929, 16523, 22139, 52793, 69823, 166501, 214799, 686309, 907699, 2164513, 28138669]

約数ペア:

[(1, 28138669), (13, 2164513), (31, 907699), (41, 686309), (131, 214799), (169, 166501), (403, 69823), (533, 52793), (1271, 22139), (1703, 16523), (4061, 6929), (5239, 5371)]