21000638945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3371}}^1\times {\mathrm{8713}}^1$

素因数の和:12113

約数の個数: 32

約数和(自身を含む): 29618676864

約数和(自身を除く): 8618037919

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 3371, 8713, 16855, 37081, 43565, 43823, 95843, 113269, 185405, 219115, 479215, 482053, 566345, 1245959, 2410265, 6229795, 29371523, 146857615, 323086753, 381829799, 1615433765, 1909148995, 4200127789, 21000638945]

約数ペア:

[(1, 21000638945), (5, 4200127789), (11, 1909148995), (13, 1615433765), (55, 381829799), (65, 323086753), (143, 146857615), (715, 29371523), (3371, 6229795), (8713, 2410265), (16855, 1245959), (37081, 566345), (43565, 482053), (43823, 479215), (95843, 219115), (113269, 185405)]