21293282

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{3989}}^1$

素因数の和:4165

約数の個数: 16

約数和(自身を含む): 34042680

約数和(自身を除く): 12749398

約数列:

[1, 2, 17, 34, 157, 314, 2669, 3989, 5338, 7978, 67813, 135626, 626273, 1252546, 10646641, 21293282]

約数ペア:

[(1, 21293282), (2, 10646641), (17, 1252546), (34, 626273), (157, 135626), (314, 67813), (2669, 7978), (3989, 5338)]