20910884

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18089}}^1$

素因数の和:18127

約数の個数: 18

約数和(自身を含む): 38875410

約数和(自身を除く): 17964526

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18089, 36178, 72356, 307513, 615026, 1230052, 5227721, 10455442, 20910884]

約数ペア:

[(1, 20910884), (2, 10455442), (4, 5227721), (17, 1230052), (34, 615026), (68, 307513), (289, 72356), (578, 36178), (1156, 18089)]