20893796

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{881}}^1$

素因数の和:921

約数の個数: 54

約数和(自身を含む): 46805094

約数和(自身を除く): 25911298

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 881, 1078, 1694, 1762, 2156, 3388, 3524, 5929, 6167, 9691, 11858, 12334, 19382, 23716, 24668, 38764, 43169, 67837, 86338, 106601, 135674, 172676, 213202, 271348, 426404, 474859, 746207, 949718, 1492414, 1899436, 2984828, 5223449, 10446898, 20893796]

約数ペア:

[(1, 20893796), (2, 10446898), (4, 5223449), (7, 2984828), (11, 1899436), (14, 1492414), (22, 949718), (28, 746207), (44, 474859), (49, 426404), (77, 271348), (98, 213202), (121, 172676), (154, 135674), (196, 106601), (242, 86338), (308, 67837), (484, 43169), (539, 38764), (847, 24668), (881, 23716), (1078, 19382), (1694, 12334), (1762, 11858), (2156, 9691), (3388, 6167), (3524, 5929)]