21255406

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{1559}}^1$

素因数の和:1979

約数の個数: 16

約数和(自身を含む): 33864480

約数和(自身を除く): 12609074

約数列:

[1, 2, 17, 34, 401, 802, 1559, 3118, 6817, 13634, 26503, 53006, 625159, 1250318, 10627703, 21255406]

約数ペア:

[(1, 21255406), (2, 10627703), (17, 1250318), (34, 625159), (401, 53006), (802, 26503), (1559, 13634), (3118, 6817)]