19997785918

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{929}}^1\times {\mathrm{88951}}^1$

素因数の和:89904

約数の個数: 24

約数和(自身を含む): 33007418640

約数和(自身を除く): 13009632722

約数列:

[1, 2, 11, 22, 121, 242, 929, 1858, 10219, 20438, 88951, 112409, 177902, 224818, 978461, 1956922, 10763071, 21526142, 82635479, 165270958, 908990269, 1817980538, 9998892959, 19997785918]

約数ペア:

[(1, 19997785918), (2, 9998892959), (11, 1817980538), (22, 908990269), (121, 165270958), (242, 82635479), (929, 21526142), (1858, 10763071), (10219, 1956922), (20438, 978461), (88951, 224818), (112409, 177902)]