21167111

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 25014528

約数和(自身を除く): 3847417

約数列:

[1, 7, 41, 131, 287, 563, 917, 3941, 5371, 23083, 37597, 73753, 161581, 516271, 3023873, 21167111]

約数ペア:

[(1, 21167111), (7, 3023873), (41, 516271), (131, 161581), (287, 73753), (563, 37597), (917, 23083), (3941, 5371)]