20589716

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10357}}^1$

素因数の和:10439

約数の個数: 24

約数和(自身を含む): 41763456

約数和(自身を除く): 21173740

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10357, 20714, 41428, 72499, 144998, 289996, 735347, 1470694, 2941388, 5147429, 10294858, 20589716]

約数ペア:

[(1, 20589716), (2, 10294858), (4, 5147429), (7, 2941388), (14, 1470694), (28, 735347), (71, 289996), (142, 144998), (284, 72499), (497, 41428), (994, 20714), (1988, 10357)]