20499508

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 36973440

約数和(自身を除く): 16473932

約数列:

[1, 2, 4, 41, 82, 164, 239, 478, 523, 956, 1046, 2092, 9799, 19598, 21443, 39196, 42886, 85772, 124997, 249994, 499988, 5124877, 10249754, 20499508]

約数ペア:

[(1, 20499508), (2, 10249754), (4, 5124877), (41, 499988), (82, 249994), (164, 124997), (239, 85772), (478, 42886), (523, 39196), (956, 21443), (1046, 19598), (2092, 9799)]