21026000

素因数分解:

$2^4\times 5^3\times {\mathrm{10513}}^1$

素因数の和:10536

約数の個数: 40

約数和(自身を含む): 50845704

約数和(自身を除く): 29819704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10513, 21026, 42052, 52565, 84104, 105130, 168208, 210260, 262825, 420520, 525650, 841040, 1051300, 1314125, 2102600, 2628250, 4205200, 5256500, 10513000, 21026000]

約数ペア:

[(1, 21026000), (2, 10513000), (4, 5256500), (5, 4205200), (8, 2628250), (10, 2102600), (16, 1314125), (20, 1051300), (25, 841040), (40, 525650), (50, 420520), (80, 262825), (100, 210260), (125, 168208), (200, 105130), (250, 84104), (400, 52565), (500, 42052), (1000, 21026), (2000, 10513)]