21569872

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79301}}^1$

素因数の和:79326

約数の個数: 20

約数和(自身を含む): 44250516

約数和(自身を除く): 22680644

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79301, 158602, 317204, 634408, 1268816, 1348117, 2696234, 5392468, 10784936, 21569872]

約数ペア:

[(1, 21569872), (2, 10784936), (4, 5392468), (8, 2696234), (16, 1348117), (17, 1268816), (34, 634408), (68, 317204), (136, 158602), (272, 79301)]