20576218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 34722576

約数和(自身を除く): 14146358

約数列:

[1, 2, 13, 26, 37, 73, 74, 146, 293, 481, 586, 949, 962, 1898, 2701, 3809, 5402, 7618, 10841, 21389, 21682, 35113, 42778, 70226, 140933, 278057, 281866, 556114, 791393, 1582786, 10288109, 20576218]

約数ペア:

[(1, 20576218), (2, 10288109), (13, 1582786), (26, 791393), (37, 556114), (73, 281866), (74, 278057), (146, 140933), (293, 70226), (481, 42778), (586, 35113), (949, 21682), (962, 21389), (1898, 10841), (2701, 7618), (3809, 5402)]