21086428

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2293}}^1$

素因数の和:2338

約数の個数: 36

約数和(自身を含む): 42714280

約数和(自身を除く): 21627852

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2293, 2299, 4586, 4598, 9172, 9196, 25223, 43567, 50446, 87134, 100892, 174268, 277453, 479237, 554906, 958474, 1109812, 1916948, 5271607, 10543214, 21086428]

約数ペア:

[(1, 21086428), (2, 10543214), (4, 5271607), (11, 1916948), (19, 1109812), (22, 958474), (38, 554906), (44, 479237), (76, 277453), (121, 174268), (209, 100892), (242, 87134), (418, 50446), (484, 43567), (836, 25223), (2293, 9196), (2299, 9172), (4586, 4598)]