21501956

素因数分解:

$2^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1217}}^1$

素因数の和:1859

約数の個数: 24

約数和(自身を含む): 43107456

約数和(自身を除く): 21605500

約数列:

[1, 2, 4, 7, 14, 28, 631, 1217, 1262, 2434, 2524, 4417, 4868, 8519, 8834, 17038, 17668, 34076, 767927, 1535854, 3071708, 5375489, 10750978, 21501956]

約数ペア:

[(1, 21501956), (2, 10750978), (4, 5375489), (7, 3071708), (14, 1535854), (28, 767927), (631, 34076), (1217, 17668), (1262, 17038), (2434, 8834), (2524, 8519), (4417, 4868)]