19956871508

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1669193}}^1$

素因数の和:1669272

約数の個数: 36

約数和(自身を含む): 41292521172

約数和(自身を除く): 21335649664

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 2989, 5978, 11956, 1669193, 3338386, 6676772, 11684351, 23368702, 46737404, 81790457, 101820773, 163580914, 203641546, 327161828, 407283092, 712745411, 1425490822, 2850981644, 4989217877, 9978435754, 19956871508]

約数ペア:

[(1, 19956871508), (2, 9978435754), (4, 4989217877), (7, 2850981644), (14, 1425490822), (28, 712745411), (49, 407283092), (61, 327161828), (98, 203641546), (122, 163580914), (196, 101820773), (244, 81790457), (427, 46737404), (854, 23368702), (1708, 11684351), (2989, 6676772), (5978, 3338386), (11956, 1669193)]