21359174

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1639

約数の個数: 16

約数和(自身を含む): 34010928

約数和(自身を除く): 12651754

約数列:

[1, 2, 17, 34, 643, 977, 1286, 1954, 10931, 16609, 21862, 33218, 628211, 1256422, 10679587, 21359174]

約数ペア:

[(1, 21359174), (2, 10679587), (17, 1256422), (34, 628211), (643, 33218), (977, 21862), (1286, 16609), (1954, 10931)]