21028912

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42397}}^1$

素因数の和:42436

約数の個数: 20

約数和(自身を含む): 42058816

約数和(自身を除く): 21029904

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42397, 84794, 169588, 339176, 678352, 1314307, 2628614, 5257228, 10514456, 21028912]

約数ペア:

[(1, 21028912), (2, 10514456), (4, 5257228), (8, 2628614), (16, 1314307), (31, 678352), (62, 339176), (124, 169588), (248, 84794), (496, 42397)]