19712638

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 33756768

約数和(自身を除く): 14044130

約数列:

[1, 2, 11, 22, 37, 61, 74, 122, 397, 407, 671, 794, 814, 1342, 2257, 4367, 4514, 8734, 14689, 24217, 24827, 29378, 48434, 49654, 161579, 266387, 323158, 532774, 896029, 1792058, 9856319, 19712638]

約数ペア:

[(1, 19712638), (2, 9856319), (11, 1792058), (22, 896029), (37, 532774), (61, 323158), (74, 266387), (122, 161579), (397, 49654), (407, 48434), (671, 29378), (794, 24827), (814, 24217), (1342, 14689), (2257, 8734), (4367, 4514)]