19817237

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 24295680

約数和(自身を除く): 4478443

約数列:

[1, 11, 23, 29, 37, 73, 253, 319, 407, 667, 803, 851, 1073, 1679, 2117, 2701, 7337, 9361, 11803, 18469, 23287, 24679, 29711, 48691, 62123, 78329, 271469, 535601, 683353, 861619, 1801567, 19817237]

約数ペア:

[(1, 19817237), (11, 1801567), (23, 861619), (29, 683353), (37, 535601), (73, 271469), (253, 78329), (319, 62123), (407, 48691), (667, 29711), (803, 24679), (851, 23287), (1073, 18469), (1679, 11803), (2117, 9361), (2701, 7337)]