20716325

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2753}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 30051648

約数和(自身を除く): 9335323

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 2753, 7525, 13765, 19271, 68825, 96355, 118379, 481775, 591895, 828653, 2959475, 4143265, 20716325]

約数ペア:

[(1, 20716325), (5, 4143265), (7, 2959475), (25, 828653), (35, 591895), (43, 481775), (175, 118379), (215, 96355), (301, 68825), (1075, 19271), (1505, 13765), (2753, 7525)]