20540695

素因数分解:

$5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1153}}^1$

素因数の和:1674

約数の個数: 16

約数和(自身を含む): 28249920

約数和(自身を除く): 7709225

約数列:

[1, 5, 7, 35, 509, 1153, 2545, 3563, 5765, 8071, 17815, 40355, 586877, 2934385, 4108139, 20540695]

約数ペア:

[(1, 20540695), (5, 4108139), (7, 2934385), (35, 586877), (509, 40355), (1153, 17815), (2545, 8071), (3563, 5765)]