19939942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 34401024

約数和(自身を除く): 14461082

約数列:

[1, 2, 11, 22, 23, 46, 157, 251, 253, 314, 502, 506, 1727, 2761, 3454, 3611, 5522, 5773, 7222, 11546, 39407, 39721, 63503, 78814, 79442, 127006, 433477, 866954, 906361, 1812722, 9969971, 19939942]

約数ペア:

[(1, 19939942), (2, 9969971), (11, 1812722), (22, 906361), (23, 866954), (46, 433477), (157, 127006), (251, 79442), (253, 78814), (314, 63503), (502, 39721), (506, 39407), (1727, 11546), (2761, 7222), (3454, 5773), (3611, 5522)]