21621754

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140401}}^1$

素因数の和:140421

約数の個数: 16

約数和(自身を含む): 40435776

約数和(自身を除く): 18814022

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 140401, 280802, 982807, 1544411, 1965614, 3088822, 10810877, 21621754]

約数ペア:

[(1, 21621754), (2, 10810877), (7, 3088822), (11, 1965614), (14, 1544411), (22, 982807), (77, 280802), (154, 140401)]