21435987

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1709}}^1$

素因数の和:1862

約数の個数: 16

約数和(自身を含む): 29630880

約数和(自身を除く): 8194893

約数列:

[1, 3, 37, 111, 113, 339, 1709, 4181, 5127, 12543, 63233, 189699, 193117, 579351, 7145329, 21435987]

約数ペア:

[(1, 21435987), (3, 7145329), (37, 579351), (111, 193117), (113, 189699), (339, 63233), (1709, 12543), (4181, 5127)]