208771871

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 269893632

約数和(自身を除く): 61121761

約数列:

[1, 7, 11, 37, 77, 127, 259, 407, 577, 889, 1397, 2849, 4039, 4699, 6347, 9779, 21349, 32893, 44429, 51689, 73279, 149443, 234839, 361823, 512953, 806069, 1643873, 2711323, 5642483, 18979261, 29824553, 208771871]

約数ペア:

[(1, 208771871), (7, 29824553), (11, 18979261), (37, 5642483), (77, 2711323), (127, 1643873), (259, 806069), (407, 512953), (577, 361823), (889, 234839), (1397, 149443), (2849, 73279), (4039, 51689), (4699, 44429), (6347, 32893), (9779, 21349)]