21308812

素因数分解:

$2^2\times 7^1\times {\mathrm{787}}^1\times {\mathrm{967}}^1$

素因数の和:1765

約数の個数: 24

約数和(自身を含む): 42715904

約数和(自身を除く): 21407092

約数列:

[1, 2, 4, 7, 14, 28, 787, 967, 1574, 1934, 3148, 3868, 5509, 6769, 11018, 13538, 22036, 27076, 761029, 1522058, 3044116, 5327203, 10654406, 21308812]

約数ペア:

[(1, 21308812), (2, 10654406), (4, 5327203), (7, 3044116), (14, 1522058), (28, 761029), (787, 27076), (967, 22036), (1574, 13538), (1934, 11018), (3148, 6769), (3868, 5509)]