21142187

素因数分解:

${\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 23688288

約数和(自身を除く): 2546101

約数列:

[1, 11, 73, 113, 233, 803, 1243, 2563, 8249, 17009, 26329, 90739, 187099, 289619, 1922017, 21142187]

約数ペア:

[(1, 21142187), (11, 1922017), (73, 289619), (113, 187099), (233, 90739), (803, 26329), (1243, 17009), (2563, 8249)]