19664538

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{313}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 40664256

約数和(自身を除く): 20999718

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 283, 313, 566, 626, 849, 939, 1698, 1878, 10471, 11581, 20942, 23162, 31413, 34743, 62826, 69486, 88579, 177158, 265737, 531474, 3277423, 6554846, 9832269, 19664538]

約数ペア:

[(1, 19664538), (2, 9832269), (3, 6554846), (6, 3277423), (37, 531474), (74, 265737), (111, 177158), (222, 88579), (283, 69486), (313, 62826), (566, 34743), (626, 31413), (849, 23162), (939, 20942), (1698, 11581), (1878, 10471)]