19388621378

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1\times {\mathrm{18743}}^1$

素因数の和:20786

約数の個数: 32

約数和(自身を含む): 34154866944

約数和(自身を除く): 14766245566

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 1997, 3994, 13979, 18743, 27958, 37486, 73889, 131201, 147778, 262402, 517223, 693491, 1034446, 1386982, 4854437, 9708874, 37429771, 74859542, 262008397, 524016794, 1384901527, 2769803054, 9694310689, 19388621378]

約数ペア:

[(1, 19388621378), (2, 9694310689), (7, 2769803054), (14, 1384901527), (37, 524016794), (74, 262008397), (259, 74859542), (518, 37429771), (1997, 9708874), (3994, 4854437), (13979, 1386982), (18743, 1034446), (27958, 693491), (37486, 517223), (73889, 262402), (131201, 147778)]