21967672

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{161527}}^1$

素因数の和:161550

約数の個数: 16

約数和(自身を含む): 43612560

約数和(自身を除く): 21644888

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 161527, 323054, 646108, 1292216, 2745959, 5491918, 10983836, 21967672]

約数ペア:

[(1, 21967672), (2, 10983836), (4, 5491918), (8, 2745959), (17, 1292216), (34, 646108), (68, 323054), (136, 161527)]