21195918

素因数分解:

$2^1\times 3^5\times {\mathrm{43613}}^1$

素因数の和:43630

約数の個数: 24

約数和(自身を含む): 47626488

約数和(自身を除く): 26430570

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 43613, 87226, 130839, 261678, 392517, 785034, 1177551, 2355102, 3532653, 7065306, 10597959, 21195918]

約数ペア:

[(1, 21195918), (2, 10597959), (3, 7065306), (6, 3532653), (9, 2355102), (18, 1177551), (27, 785034), (54, 392517), (81, 261678), (162, 130839), (243, 87226), (486, 43613)]