21167369672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{216577}}^1$

素因数の和:217245

約数の個数: 32

約数和(自身を含む): 41842869600

約数和(自身を除く): 20675499928

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 643, 1286, 2572, 5144, 12217, 24434, 48868, 97736, 216577, 433154, 866308, 1732616, 4114963, 8229926, 16459852, 32919704, 139259011, 278518022, 557036044, 1114072088, 2645921209, 5291842418, 10583684836, 21167369672]

約数ペア:

[(1, 21167369672), (2, 10583684836), (4, 5291842418), (8, 2645921209), (19, 1114072088), (38, 557036044), (76, 278518022), (152, 139259011), (643, 32919704), (1286, 16459852), (2572, 8229926), (5144, 4114963), (12217, 1732616), (24434, 866308), (48868, 433154), (97736, 216577)]