19895943

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 29283840

約数和(自身を除く): 9387897

約数列:

[1, 3, 23, 29, 61, 69, 87, 163, 183, 489, 667, 1403, 1769, 2001, 3749, 4209, 4727, 5307, 9943, 11247, 14181, 29829, 40687, 108721, 122061, 228689, 288347, 326163, 686067, 865041, 6631981, 19895943]

約数ペア:

[(1, 19895943), (3, 6631981), (23, 865041), (29, 686067), (61, 326163), (69, 288347), (87, 228689), (163, 122061), (183, 108721), (489, 40687), (667, 29829), (1403, 14181), (1769, 11247), (2001, 9943), (3749, 5307), (4209, 4727)]