20997908

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1831}}^1$

素因数の和:1943

約数の個数: 24

約数和(自身を含む): 38164224

約数和(自身を除く): 17166316

約数列:

[1, 2, 4, 47, 61, 94, 122, 188, 244, 1831, 2867, 3662, 5734, 7324, 11468, 86057, 111691, 172114, 223382, 344228, 446764, 5249477, 10498954, 20997908]

約数ペア:

[(1, 20997908), (2, 10498954), (4, 5249477), (47, 446764), (61, 344228), (94, 223382), (122, 172114), (188, 111691), (244, 86057), (1831, 11468), (2867, 7324), (3662, 5734)]