21052876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1613}}^1$

素因数の和:1881

約数の個数: 24

約数和(自身を含む): 39859344

約数和(自身を除く): 18806468

約数列:

[1, 2, 4, 13, 26, 52, 251, 502, 1004, 1613, 3226, 3263, 6452, 6526, 13052, 20969, 41938, 83876, 404863, 809726, 1619452, 5263219, 10526438, 21052876]

約数ペア:

[(1, 21052876), (2, 10526438), (4, 5263219), (13, 1619452), (26, 809726), (52, 404863), (251, 83876), (502, 41938), (1004, 20969), (1613, 13052), (3226, 6526), (3263, 6452)]