21354172

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3191}}^1$

素因数の和:3441

約数の個数: 24

約数和(自身を含む): 42900480

約数和(自身を除く): 21546308

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 3191, 3346, 6382, 6692, 12764, 22337, 44674, 89348, 762649, 1525298, 3050596, 5338543, 10677086, 21354172]

約数ペア:

[(1, 21354172), (2, 10677086), (4, 5338543), (7, 3050596), (14, 1525298), (28, 762649), (239, 89348), (478, 44674), (956, 22337), (1673, 12764), (3191, 6692), (3346, 6382)]