19654228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 39533760

約数和(自身を除く): 19879532

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 73, 116, 146, 211, 292, 319, 422, 638, 803, 844, 1276, 1606, 2117, 2321, 3212, 4234, 4642, 6119, 8468, 9284, 12238, 15403, 23287, 24476, 30806, 46574, 61612, 67309, 93148, 134618, 169433, 269236, 338866, 446687, 677732, 893374, 1786748, 4913557, 9827114, 19654228]

約数ペア:

[(1, 19654228), (2, 9827114), (4, 4913557), (11, 1786748), (22, 893374), (29, 677732), (44, 446687), (58, 338866), (73, 269236), (116, 169433), (146, 134618), (211, 93148), (292, 67309), (319, 61612), (422, 46574), (638, 30806), (803, 24476), (844, 23287), (1276, 15403), (1606, 12238), (2117, 9284), (2321, 8468), (3212, 6119), (4234, 4642)]