21319738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13649}}^1$

素因数の和:13733

約数の個数: 16

約数和(自身を含む): 35380800

約数和(自身を除く): 14061062

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13649, 27298, 150139, 300278, 969079, 1938158, 10659869, 21319738]

約数ペア:

[(1, 21319738), (2, 10659869), (11, 1938158), (22, 969079), (71, 300278), (142, 150139), (781, 27298), (1562, 13649)]