20921798

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{16631}}^1$

素因数の和:16687

約数の個数: 16

約数和(自身を含む): 34128864

約数和(自身を除く): 13207066

約数列:

[1, 2, 17, 34, 37, 74, 629, 1258, 16631, 33262, 282727, 565454, 615347, 1230694, 10460899, 20921798]

約数ペア:

[(1, 20921798), (2, 10460899), (17, 1230694), (34, 615347), (37, 565454), (74, 282727), (629, 33262), (1258, 16631)]