21588236

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{401}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 38878224

約数和(自身を除く): 17289988

約数列:

[1, 2, 4, 43, 86, 172, 313, 401, 626, 802, 1252, 1604, 13459, 17243, 26918, 34486, 53836, 68972, 125513, 251026, 502052, 5397059, 10794118, 21588236]

約数ペア:

[(1, 21588236), (2, 10794118), (4, 5397059), (43, 502052), (86, 251026), (172, 125513), (313, 68972), (401, 53836), (626, 34486), (802, 26918), (1252, 17243), (1604, 13459)]