21635872

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12757}}^1$

素因数の和:12820

約数の個数: 24

約数和(自身を含む): 43402716

約数和(自身を除く): 21766844

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12757, 25514, 51028, 102056, 204112, 408224, 676121, 1352242, 2704484, 5408968, 10817936, 21635872]

約数ペア:

[(1, 21635872), (2, 10817936), (4, 5408968), (8, 2704484), (16, 1352242), (32, 676121), (53, 408224), (106, 204112), (212, 102056), (424, 51028), (848, 25514), (1696, 12757)]