19917716

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{7817}}^1$

素因数の和:7848

約数の個数: 36

約数和(自身を含む): 43671348

約数和(自身を除く): 23753632

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 7817, 15634, 31268, 54719, 101621, 109438, 203242, 218876, 383033, 406484, 711347, 766066, 1422694, 1532132, 2845388, 4979429, 9958858, 19917716]

約数ペア:

[(1, 19917716), (2, 9958858), (4, 4979429), (7, 2845388), (13, 1532132), (14, 1422694), (26, 766066), (28, 711347), (49, 406484), (52, 383033), (91, 218876), (98, 203242), (182, 109438), (196, 101621), (364, 54719), (637, 31268), (1274, 15634), (2548, 7817)]